:root{--navy:#0d2438;--navy2:#183d57;--blue:#2f6f94;--sky:#eaf4fb;--cream:#f7f3eb;--paper:#fbfcfa;--ink:#17232d;--muted:#697680;--line:#e0e7eb;--gold:#c8a566;--green:#34796f;--red:#ad535c;--amber:#a77735;--shadow:0 12px 34px rgba(16,37,55,.07);--serif:Georgia,'Times New Roman',serif;--sans:Aptos,'Segoe UI',Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:#f5f7f8;color:var(--ink);font:14px/1.5 var(--sans)}button,input,select,textarea{font:inherit}.shell{display:grid;grid-template-columns:245px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:var(--navy);padding:22px 15px;color:white;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;padding:0 8px 24px}.brandmark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:white;color:var(--navy);font:600 20px var(--serif)}.brand b{display:block;font:600 19px var(--serif)}.brand span{display:block;font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:#a9bdca}.sidebar nav{display:flex;flex-direction:column;gap:4px}.sidebar nav button{border:0;background:transparent;color:#a9bbc6;padding:10px 12px;border-radius:10px;text-align:left;cursor:pointer;display:flex;gap:10px}.sidebar nav button:hover,.sidebar nav button.active{background:rgba(255,255,255,.09);color:white}.side-foot{margin-top:auto;border-top:1px solid rgba(255,255,255,.12);padding:16px 8px}.side-foot small,.side-foot strong{display:block}.side-foot small{font-size:8px;color:#95aab8;letter-spacing:.13em}.side-foot strong{font-size:10px;margin-top:3px}.top{height:92px;background:rgba(255,255,255,.9);backdrop-filter:blur(15px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:16px 32px;position:sticky;top:0;z-index:10}.top h1{margin:3px 0 0;font:600 24px var(--serif)}.eyebrow{font-size:9px;text-transform:uppercase;letter-spacing:.13em;font-weight:700;color:var(--blue)}.eyebrow.light{color:#c5d9e6}.user{display:flex;gap:10px;align-items:center}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--navy);color:white;font-size:10px}.searchicon{font-size:20px}.view{display:none;padding:28px 32px 60px;max-width:1480px;margin:auto}.view.active{display:block}.hero{display:grid;grid-template-columns:1fr 260px;gap:28px;background:linear-gradient(125deg,var(--navy),#1d5778);color:white;border-radius:22px;padding:32px;box-shadow:var(--shadow)}h2{font:600 clamp(27px,3vw,42px)/1.08 var(--serif);margin:8px 0 12px}h3{font:600 21px/1.2 var(--serif);margin:6px 0 10px}p{color:var(--muted);line-height:1.62}.hero p{color:#d4e1e8;max-width:760px}.actions{display:flex;gap:8px;margin-top:20px}.primary,.secondary{border:0;border-radius:10px;padding:10px 14px;font-weight:700;font-size:12px;cursor:pointer}.primary{background:var(--navy);color:white}.secondary{background:white;color:var(--ink);border:1px solid var(--line)}.inverse.primary{background:white;color:var(--navy)}.inverse.secondary{background:transparent;color:white;border-color:rgba(255,255,255,.3)}.wide{width:100%}.hero-stat{border-left:1px solid rgba(255,255,255,.2);padding-left:24px;display:grid;align-content:center;grid-template-columns:1fr 1fr;gap:5px 12px}.hero-stat b{font:600 34px var(--serif)}.hero-stat span{align-self:center;font-size:11px;color:#c8d8e2}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:18px 0}.stats article,.panel,.admingrid article{background:white;border:1px solid var(--line);border-radius:16px;box-shadow:0 7px 20px rgba(20,40,57,.04)}.stats article{padding:15px}.stats small,.stats span{display:block;font-size:9px;color:var(--muted)}.stats b{display:block;font:600 25px var(--serif);margin:3px 0}.grid2{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}.panel{padding:19px}.panelhead,.intro{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.intro{margin-bottom:16px}.intro p{max-width:780px}.pathsteps{display:grid;gap:6px}.pathsteps button{border:0;background:#f8fafb;border-radius:12px;padding:12px;display:flex;text-align:left;gap:10px;cursor:pointer}.pathsteps i{font-style:normal;width:26px;height:26px;border-radius:8px;background:var(--sky);display:grid;place-items:center;font-weight:700;color:var(--blue)}.pathsteps b,.pathsteps small{display:block}.pathsteps small{color:var(--muted);font-size:10px;margin-top:2px}.memory{background:var(--cream);border-left:3px solid var(--gold);padding:12px;border-radius:0 10px 10px 0;margin:14px 0;font-size:11px}.search{width:min(360px,100%);padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:white}.tabs,.chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}.tabs button,.chips button{background:white;border:1px solid var(--line);border-radius:999px;padding:7px 11px;font-size:10px;cursor:pointer}.tabs button.active,.chips button.active{background:var(--navy);color:white;border-color:var(--navy)}.notegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.notecard{background:white;border:1px solid var(--line);border-radius:15px;padding:16px;min-height:210px;display:flex;flex-direction:column}.notecard h3{font-size:17px}.notecard p{font-size:10px;flex:1}.notecard .tags,.diagramcard .tags{display:flex;gap:5px;flex-wrap:wrap;margin:8px 0}.tag{font-size:8px;background:var(--sky);color:var(--blue);padding:3px 6px;border-radius:999px}.notecard button{align-self:flex-start}.diagramgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.diagramcard{background:white;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);cursor:pointer}.diagramcard img{width:100%;aspect-ratio:1/1;object-fit:cover;background:#f9fbfc}.diagramcard .body{padding:14px}.diagramcard h3{font-size:17px}.diagramcard p{font-size:10px;margin:6px 0}.trickygrid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.trickycard{background:white;border:1px solid var(--line);border-radius:15px;overflow:hidden}.trickyhead{display:grid;grid-template-columns:1fr 38px 1fr;gap:6px;align-items:center;background:linear-gradient(90deg,#f2f8fc,#fff8ed);padding:14px;font:600 15px var(--serif)}.vs{text-align:center;color:var(--gold);font:700 9px var(--sans)}.trickybody{padding:14px}.compare{display:grid;grid-template-columns:1fr 1fr;gap:8px}.compare div{background:var(--cream);border-radius:9px;padding:10px;font-size:10px}.trap,.memo{margin-top:8px;border-left:3px solid var(--red);background:#fbf2f3;padding:8px 10px;font-size:10px;border-radius:0 8px 8px 0}.memo{border-color:var(--green);background:#edf6f3;font-weight:700}.practice-layout{display:grid;grid-template-columns:1fr 310px;gap:14px}.builder label{display:block;font-size:10px;font-weight:700;color:#44515b;margin-bottom:6px}.field{margin-bottom:14px}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:10px 0 14px}.formgrid select{width:100%;padding:10px;border:1px solid var(--line);border-radius:9px;background:white}.check{display:flex!important;gap:7px;align-items:center;margin:12px 0}.check input{width:auto}.previewrow{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:10px 0;font-size:10px}.questionarea{margin-top:20px}.qcard{background:white;border:1px solid var(--line);border-radius:17px;padding:22px;max-width:920px}.qmeta{display:flex;gap:5px;flex-wrap:wrap}.qstem{font:600 18px/1.5 var(--serif);margin:14px 0}.options{display:grid;gap:7px}.option{background:white;border:1px solid var(--line);padding:11px 13px;border-radius:10px;text-align:left;cursor:pointer;font-size:11px}.option.correct{border-color:#74ad9f;background:#edf7f4}.option.wrong{border-color:#d59aa0;background:#fbf1f2}.feedback{background:var(--cream);padding:12px;border-radius:10px;margin-top:12px;font-size:10px}.qactions{display:flex;justify-content:space-between;margin-top:12px}.hidden{display:none!important}.dailygrid,.mistakegrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.dailycard,.mistakecard{background:white;border:1px solid var(--line);border-radius:14px;padding:15px}.dailycard h3,.mistakecard h3{font-size:16px}.dailycard p,.mistakecard p{font-size:10px}.chat{min-height:300px;background:white;border:1px solid var(--line);border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:9px}.coachwrap{max-width:860px;margin:auto}.bubble{max-width:78%;padding:11px 13px;border-radius:13px;background:var(--cream)}.bubble.user{align-self:flex-end;background:var(--navy);color:white}.bubble p{font-size:10px;margin:3px 0;color:inherit}.chatinput{display:grid;grid-template-columns:1fr 80px;gap:8px;margin-top:8px}.chatinput textarea{min-height:70px;padding:10px;border:1px solid var(--line);border-radius:10px}.clean{padding-left:18px;color:var(--muted);font-size:11px}.admingrid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px}.admingrid article{padding:15px}.admingrid b{font:600 16px var(--serif)}.admingrid p{font-size:10px}.adminrow{display:grid;grid-template-columns:120px 1fr 130px 120px;gap:8px;padding:8px;border-bottom:1px solid var(--line);font-size:9px}.barrow{display:grid;grid-template-columns:130px 1fr 45px;gap:8px;align-items:center;font-size:10px;margin:12px 0}.track{height:6px;background:#edf1f3;border-radius:999px;overflow:hidden}.track i{display:block;height:100%;background:var(--blue)}.modal{position:fixed;inset:0;background:rgba(5,18,28,.65);display:grid;place-items:center;padding:18px;z-index:50}.modalcard{background:white;border-radius:18px;max-width:980px;width:100%;max-height:92vh;overflow:auto;padding:22px;position:relative}.close{position:sticky;float:right;top:0;border:0;background:white;font-size:24px;cursor:pointer}.modalimg{width:100%;max-width:780px;display:block;margin:0 auto 18px;border-radius:14px}.modalgrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.modalbox{background:#f8fafb;border-radius:10px;padding:10px;font-size:10px}.modalbox b{display:block;margin-bottom:4px}.pill{display:inline-block;font-size:8px;border-radius:999px;padding:3px 6px;background:var(--sky);color:var(--blue);text-transform:uppercase;font-weight:700}.empty{color:var(--muted);font-size:10px}.note-detail ul{font-size:11px;color:#45535e}.note-detail .rule{background:#f8fafb;border-radius:10px;padding:8px 10px;margin:5px 0}.note-detail .do-first{background:#edf7f4;border-left:3px solid var(--green);padding:10px;margin:12px 0}.note-detail .flow{background:var(--cream);padding:10px;border-radius:10px;font-weight:700}.note-detail img{width:100%;max-width:620px;border-radius:12px;display:block;margin:12px auto}.qvisual{margin:12px 0}.qvisual img{max-width:100%;border-radius:12px}@media(max-width:1100px){.shell{grid-template-columns:80px 1fr}.brand>div:last-child,.sidebar nav span,.side-foot{display:none}.brand{justify-content:center}.sidebar nav button{justify-content:center}.notegrid,.diagramgrid{grid-template-columns:repeat(2,1fr)}.admingrid{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.shell{display:block}.sidebar{position:fixed;z-index:20;bottom:0;top:auto;width:100%;height:auto;padding:5px}.brand,.side-foot{display:none}.sidebar nav{flex-direction:row;overflow:auto}.sidebar nav button{min-width:45px;padding:9px}.top{height:72px;padding:12px 16px}.view{padding:16px 13px 80px}.hero,.grid2,.practice-layout{grid-template-columns:1fr}.hero-stat{display:none}.stats,.notegrid,.diagramgrid,.trickygrid,.dailygrid,.mistakegrid,.admingrid{grid-template-columns:1fr}.formgrid,.modalgrid{grid-template-columns:1fr}.compare{grid-template-columns:1fr}.intro{flex-direction:column}.search{width:100%}}.auth-gate{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0d2438,#173f5f);padding:24px}.auth-card{width:min(460px,100%);background:#fff;border-radius:22px;padding:30px;box-shadow:0 30px 70px rgba(0,0,0,.22)}.brand-mark{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:#0d2438;color:#fff;font:600 28px Georgia;margin-bottom:16px}.brand-mark.small{width:36px;height:36px;font-size:20px;margin:0}.auth-card h1{font:600 28px Georgia;margin:0 0 10px}.auth-tabs{display:flex;gap:8px;margin:20px 0}.auth-tabs button{flex:1;border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px}.auth-tabs button.active{background:var(--navy);color:#fff}.auth-form{display:grid;gap:10px}.message{margin-top:10px;font-size:11px;color:var(--red)}.status-pill{font-size:9px;padding:5px 8px;border-radius:999px;background:#eef5f8;color:var(--green)}.hero-btn{background:#fff!important;color:var(--navy)!important}.path-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.path-grid button{border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px;text-align:left}.notes-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.note-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}.note-card h3{margin:8px 0}.note-card .summary{font-size:11px}.note-detail{display:none;margin-top:12px;border-top:1px solid var(--line);padding-top:12px}.note-card.open .note-detail{display:block}.note-detail h4{font-family:var(--sans);font-size:11px;margin:12px 0 5px}.note-detail ul{padding-left:18px;font-size:10px;line-height:1.6}.diagram-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.diagram-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.diagram-card img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#f7f9fa}.diagram-card .body{padding:14px}.diagram-card .body p{font-size:10px}.tricky-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.tricky-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:16px}.tricky-card .vs{display:grid;grid-template-columns:1fr 40px 1fr;align-items:center;gap:8px}.tricky-card .term{font:600 16px Georgia}.tricky-card .vsmark{text-align:center;color:var(--gold);font-weight:700}.tricky-card .memory{background:#eef7f4;border-left:3px solid var(--green);padding:9px;margin-top:10px;font-size:10px}.tricky-card .trap{background:#fbf1f2;border-left:3px solid var(--red);padding:9px;margin-top:8px;font-size:10px}.queue-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;display:flex;justify-content:space-between;gap:10px;margin-bottom:8px}.bars{display:grid;gap:12px}.bar-row{display:grid;grid-template-columns:150px 1fr 60px;gap:10px;align-items:center}.bar-track{height:8px;background:#edf0f1;border-radius:99px;overflow:hidden}.bar-track i{display:block;height:100%;background:var(--blue)}.admin-row{display:grid;grid-template-columns:120px 1fr 150px 120px 100px;gap:10px;padding:9px;border-bottom:1px solid var(--line);font-size:10px}.admin-table{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:16px}.chat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;min-height:300px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:80%;padding:12px 14px;border-radius:14px}.bubble.ai{background:var(--cream)}.bubble.user{background:var(--navy);color:#fff;align-self:flex-end}.bubble.user p{color:#fff}.chatbox{display:grid;grid-template-columns:1fr 90px;gap:8px;margin-top:10px}.question-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;max-width:940px}.option{border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px 14px;text-align:left;cursor:pointer;display:flex;gap:10px;font-size:12px;line-height:1.5}.option.selected{border-color:var(--blue);background:#f2f8fc}.option.correct{border-color:#7eb5aa;background:#edf7f4}.option.wrong{border-color:#d9a0a4;background:#fbf1f2}.q-visual img{max-width:100%;max-height:360px;display:block;margin:12px auto;border-radius:12px}.hidden{display:none!important}@media(max-width:1000px){.notes-grid,.diagram-grid,.tricky-grid{grid-template-columns:1fr 1fr}}@media(max-width:720px){.notes-grid,.diagram-grid,.tricky-grid{grid-template-columns:1fr}.admin-row{grid-template-columns:90px 1fr 100px}.admin-row span:nth-child(4),.admin-row span:nth-child(5){display:none}}
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:16px 0 22px}.plan-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 8px 24px rgba(25,43,60,.04)}.plan-card h3{margin:6px 0}.plan-card .price{font:600 28px Georgia;margin:8px 0}.plan-card .price small{font:400 10px var(--sans);color:var(--muted)}.plan-card ul{padding-left:18px;color:var(--muted);font-size:10px;line-height:1.7;min-height:95px}.billing-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.billing-actions button{min-height:42px}.provider-strip{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.provider-pill{display:inline-flex;align-items:center;padding:7px 10px;border-radius:999px;background:#eef3f6;color:#45515b;font-size:10px}.provider-pill.on{background:#edf7f4;color:#2f766d}.provider-pill.off{background:#fbf1f2;color:#a84f55}.billing-status{margin-bottom:10px}.entitlement-active{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}.entitlement-active b{font:600 20px Georgia}.test-help{margin-top:8px}.test-help p{font-size:10px}@media(max-width:950px){.plan-grid{grid-template-columns:1fr 1fr}}@media(max-width:680px){.plan-grid{grid-template-columns:1fr}.billing-actions{grid-template-columns:1fr}}

/* ===== Production v3.4 UI compatibility patch =====
   The v3 HTML uses semantic class names that differed from an older stylesheet.
   These rules intentionally target the actual v3 markup. */
.app-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh;background:#f5f7f8}
.app-shell>main{min-width:0;min-height:100vh;background:#f5f7f8}
.brand-mark{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:#fff;color:var(--navy);font:600 20px var(--serif);flex:0 0 auto}
.brand-mark.small{margin:0}
.side-bottom{margin-top:auto;border-top:1px solid rgba(255,255,255,.12);padding:16px 8px;display:grid;gap:8px;font-size:11px}
.side-bottom .ghost{border:1px solid rgba(255,255,255,.18);background:transparent;color:#d8e5ec;border-radius:9px;padding:8px 10px;cursor:pointer;text-align:left}
.topbar{height:92px;background:rgba(255,255,255,.94);backdrop-filter:blur(15px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:16px 32px;position:sticky;top:0;z-index:10}
.topbar h1{margin:3px 0 0;font:600 24px var(--serif)}
.top-actions{display:flex;align-items:center;gap:10px}
.hero-card{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:28px;background:linear-gradient(125deg,var(--navy),#1d5778);color:#fff;border-radius:22px;padding:32px;box-shadow:var(--shadow)}
.hero-card p{color:#d4e1e8;max-width:760px}
.button-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.ring-card{border-left:1px solid rgba(255,255,255,.2);padding-left:24px;display:grid;align-content:center;justify-items:center;text-align:center}
.ring{width:132px;height:132px;border-radius:50%;border:10px solid rgba(255,255,255,.18);display:grid;place-items:center;align-content:center;background:rgba(255,255,255,.06)}
.ring span{font:600 29px var(--serif)}
.ring small{font-size:9px;text-transform:uppercase;letter-spacing:.12em;color:#c8d8e2}
.ring-card p{font-size:10px;margin:10px 0 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 7px 20px rgba(20,40,57,.04);padding:15px}
.stat span,.stat small{display:block;font-size:9px;color:var(--muted)}
.stat b{display:block;font:600 25px var(--serif);margin:3px 0}
.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}
.section-intro{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:16px}
.section-intro p{max-width:780px}
.filter-pills{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.filter-pills button{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 11px;font-size:10px;cursor:pointer}
.filter-pills button.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.builder-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:10px 0 14px}
.form-grid label{display:block;font-size:10px;font-weight:700;color:#44515b;margin-bottom:6px}
.form-grid input,.form-grid select,.auth-form input,.chatbox textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.toggle-row{display:flex;gap:18px;flex-wrap:wrap;margin:12px 0 16px;font-size:11px;color:#44515b}
.toggle-row label{display:flex;align-items:center;gap:7px}
.session-area{margin-top:20px}
.session-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}
.question-meta{display:flex;gap:5px;flex-wrap:wrap}
.question-stem{font:600 18px/1.5 var(--serif);margin:14px 0}
.question-actions{display:flex;gap:8px;justify-content:space-between;flex-wrap:wrap;margin-top:12px}
.coach-shell{max-width:860px;margin:auto}
.queue{display:grid;gap:8px}
.ghost{cursor:pointer}

@media(max-width:1100px){
  .app-shell{grid-template-columns:220px minmax(0,1fr)}
  .brand>div:last-child,.sidebar nav span,.side-bottom{display:block}
  .brand{justify-content:flex-start}
  .sidebar nav button{justify-content:flex-start}
  .hero-card{grid-template-columns:1fr 190px}
}
@media(max-width:820px){
  .app-shell{display:block}
  .sidebar{position:fixed;z-index:20;bottom:0;top:auto;left:0;right:0;width:100%;height:auto;padding:5px}
  .brand,.side-bottom{display:none}
  .sidebar nav{flex-direction:row;overflow:auto;gap:3px}
  .sidebar nav button{min-width:48px;padding:9px;justify-content:center}
  .sidebar nav button span{display:none}
  .topbar{height:72px;padding:12px 16px}
  .view{padding:16px 13px 88px}
  .hero-card,.two-col,.builder-grid{grid-template-columns:1fr}
  .ring-card{display:none}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr}
  .section-intro{flex-direction:column}
  .search{width:100%}
}
@media(max-width:560px){.stat-grid{grid-template-columns:1fr}.button-row{display:grid}.button-row button{width:100%}}

/* ===== Production v3.5 learning, visuals, zoom, and Instructor Studio ===== */
.builder-grid.single{grid-template-columns:minmax(0,1fr)}
.diagram-image-wrap{position:relative;background:#f7f9fa}.zoom-chip{position:absolute;right:10px;bottom:10px;border:1px solid rgba(13,36,56,.16);background:rgba(255,255,255,.94);color:var(--navy);border-radius:999px;padding:7px 10px;font-size:10px;font-weight:700;cursor:pointer;box-shadow:0 4px 14px rgba(13,36,56,.08)}
.visual-stage{border:1px solid var(--line);border-radius:15px;background:#fbfcfd;margin:16px 0;overflow:hidden}.visual-head{display:flex;justify-content:space-between;align-items:center;padding:9px 12px;border-bottom:1px solid var(--line);font-size:10px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.visual-content{padding:18px;overflow:auto}.visual-caption{font-size:10px!important;margin:0;padding:0 14px 14px;color:var(--muted)}
.visual-table-wrap{overflow:auto}.visual-table{width:100%;border-collapse:collapse;background:#fff}.visual-table th,.visual-table td{border:1px solid var(--line);padding:10px;text-align:left;font-size:11px}.visual-table th{background:var(--sky);color:var(--navy)}
.hbars{display:grid;gap:12px}.hbar-row{display:grid;grid-template-columns:minmax(120px,1fr) minmax(180px,3fr) 80px;gap:10px;align-items:center;font-size:11px}.hbar-track{height:22px;background:#edf1f3;border-radius:6px;overflow:hidden}.hbar-track i{display:block;height:100%;background:linear-gradient(90deg,#2f6f94,#6fa8c7);border-radius:6px}.hbar-row b{text-align:right}
.vbars{height:220px;display:flex;align-items:flex-end;justify-content:center;gap:22px;border-bottom:1px solid var(--line);padding:0 16px}.vbar{height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;min-width:72px;gap:5px}.vbar i{display:block;width:42px;background:linear-gradient(#6fa8c7,#2f6f94);border-radius:8px 8px 0 0}.vbar span{font-size:9px;text-align:center}.vbar b{font-size:10px}
.mini-chart{width:100%;max-width:680px;height:auto;color:var(--blue)}.mini-chart line{stroke:#80909c;stroke-width:1}.mini-chart circle{fill:currentColor}.mini-chart text{font-size:10px;fill:#5f6b75}
.network-visual{display:grid;gap:16px}.network-nodes{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}.network-node{min-width:100px;padding:14px;border:1px solid #bcd4e4;background:#eef7fc;border-radius:12px;text-align:center}.network-node b,.network-node span{display:block}.network-node b{font:600 20px var(--serif)}.network-node span{font-size:10px;color:var(--muted)}.network-edges{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.network-edges span{background:var(--cream);border-radius:999px;padding:6px 10px;font-size:10px}
.flow-visual{display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap}.flow-node{padding:14px 18px;border:1px solid #bfd8e5;background:#eef7fb;border-radius:12px;font-weight:700;font-size:11px}.flow-arrow{font-size:22px;color:var(--blue)}
.kanban-visual{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.kanban-col{min-height:130px;border-radius:12px;background:#eef5f9;border:1px solid #d5e4ec;padding:12px;text-align:center}.kanban-col b,.kanban-col span{display:block}.kanban-col span{font:600 32px var(--serif);margin-top:18px}.cfd-legend{display:flex;gap:8px;flex-wrap:wrap}.cfd-legend span{background:#eef5f8;padding:6px 8px;border-radius:999px;font-size:9px}
.matching-grid{display:grid;gap:10px}.matching-row{display:grid;grid-template-columns:minmax(0,2fr) minmax(220px,1fr);gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff}.matching-row>div{display:flex;gap:9px;align-items:flex-start}.matching-row select{width:100%;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fff}.matching-row.correct{border-color:#7eb5aa;background:#edf7f4}.matching-row.wrong{border-color:#d9a0a4;background:#fbf1f2}.numeric-answer{max-width:360px}.numeric-answer label{display:block;font-weight:700;font-size:11px;margin-bottom:6px}.numeric-answer input{width:100%;padding:11px;border:1px solid var(--line);border-radius:9px}
.modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:24px}.modal-backdrop{position:absolute;inset:0;background:rgba(7,20,31,.72);backdrop-filter:blur(5px)}.modal-card{position:relative;z-index:1;background:#fff;border-radius:18px;box-shadow:0 24px 80px rgba(0,0,0,.28);width:min(1100px,96vw);max-height:92vh;overflow:hidden;display:flex;flex-direction:column}.modal-head{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center}.modal-head h3{margin:0}.modal-x{font-size:25px;border:0;background:transparent}.zoom-card{width:min(1200px,97vw);height:min(92vh,900px)}.zoom-controls{padding:8px 18px;border-bottom:1px solid var(--line);display:flex;gap:8px;align-items:center}.zoom-body{flex:1;overflow:auto;padding:24px;background:#f3f6f8}.zoom-transform{transform-origin:top left;display:inline-block;min-width:100%}.zoom-image{display:block;max-width:1100px;width:100%;height:auto;margin:auto}.editor-card{width:min(980px,96vw)}.editor-form{padding:18px;overflow:auto}.editor-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.editor-form label{display:grid;gap:5px;font-size:10px;font-weight:700;color:#4a5964;margin-bottom:10px}.editor-form input,.editor-form textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:9px;font:11px/1.45 var(--sans)}.editor-form textarea{font-family:Consolas,'Courier New',monospace}.editor-actions{display:flex;justify-content:flex-end;gap:8px;position:sticky;bottom:0;background:#fff;padding-top:12px}.admin-toolbar{display:flex;align-items:center;gap:14px;margin-bottom:12px}.admin-toolbar .message{margin:0}.admin-row-actions{grid-template-columns:120px minmax(240px,1fr) 150px 130px 90px}.admin-row-actions button{padding:6px 10px}.admin-tabs{margin-top:-4px}
@media(max-width:760px){.matching-row{grid-template-columns:1fr}.kanban-visual{grid-template-columns:1fr 1fr}.hbar-row{grid-template-columns:100px 1fr 58px}.editor-grid{grid-template-columns:1fr}.admin-row-actions{grid-template-columns:90px minmax(180px,1fr) 80px}.admin-row-actions>*:nth-child(4){display:none}.zoom-card{height:88vh}}

/* v3.6 admin + access gate */
.admin-action-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:0 0 16px}.admin-action{border:1px solid var(--line);background:white;border-radius:14px;padding:16px;text-align:left;cursor:pointer;box-shadow:var(--shadow)}.admin-action:hover{border-color:#9bb9cb;transform:translateY(-1px)}.admin-action b,.admin-action span{display:block}.admin-action b{font-size:13px;color:var(--navy);margin-bottom:4px}.admin-action span{font-size:10px;color:var(--muted)}.payment-card{max-width:560px}.test-warning{font-size:10px;background:#fff8e8;border:1px solid #ead7a7;padding:10px;border-radius:9px}.locked-note{background:#fff8e8;border:1px solid #ead7a7;color:#76531d;border-radius:10px;padding:10px 12px;font-size:11px}.nav-locked{display:none!important}@media(max-width:900px){.admin-action-grid{grid-template-columns:1fr 1fr}}@media(max-width:560px){.admin-action-grid{grid-template-columns:1fr}}


/* Learner content-view protection. This is a deterrent, not DRM: anything shown
   on a screen can still be photographed or manually transcribed. */
body.copy-protected #notes,
body.copy-protected #diagrams,
body.copy-protected #tricky,
body.copy-protected #practice,
body.copy-protected #review,
body.copy-protected #coach {
  -webkit-user-select:none;
  user-select:none;
}
body.copy-protected #notes img,
body.copy-protected #diagrams img,
body.copy-protected #practice img,
body.copy-protected #review img {
  -webkit-user-drag:none;
  user-drag:none;
}
.content-watermark{
  position:fixed;right:18px;bottom:14px;z-index:9998;pointer-events:none;
  padding:6px 10px;border-radius:8px;background:rgba(13,36,56,.07);
  color:rgba(13,36,56,.38);font-size:9px;letter-spacing:.02em;
}
.feedback.neutral{background:#f5f7f8;border-color:#d8e1e6;color:var(--navy)}
.session-summary{display:grid;gap:10px;max-width:620px}
.review-matching{display:grid;gap:10px;margin:14px 0}
.review-pair{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:10px;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fff}
.review-answer{padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;margin:14px 0}
.review-options .option{cursor:default}
@media(max-width:720px){.review-pair{grid-template-columns:1fr}}
@media print{
  body.copy-protected #notes,
  body.copy-protected #diagrams,
  body.copy-protected #tricky,
  body.copy-protected #practice,
  body.copy-protected #review,
  body.copy-protected #coach{display:none!important}
  body.copy-protected #main::after{content:'Printing of licensed learning content is disabled.';display:block;padding:40px;font:600 18px/1.5 sans-serif}
}

/* v3.8 Mock + Mastery exams */
.exam-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px;margin:18px 0}
.exam-card,.mode-card{background:#fff;border:1px solid var(--border,#dfe5ec);border-radius:16px;padding:18px;box-shadow:0 8px 24px rgba(16,35,58,.06)}
.exam-card h3{margin:10px 0 6px}.exam-card p{color:#566474}
.mode-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin:16px 0}
.mode-card{cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:6px;color:inherit}.mode-card:hover{transform:translateY(-1px);border-color:#b89b55}.mode-card b{font-size:1rem;color:#10243d}.mode-card span{font-size:.88rem;color:#647283}
.feedback-setting{display:block;max-width:420px;margin-top:18px}.feedback-setting select{width:100%;margin-top:6px}
.exam-session{margin-top:16px}.exam-toolbar{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:12px}.exam-clock-wrap{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.exam-timer{font-variant-numeric:tabular-nums;font-weight:800;letter-spacing:.04em;font-size:1.15rem;color:#10243d;background:#f4f7fa;border:1px solid #dbe3eb;border-radius:12px;padding:10px 14px;min-width:96px;text-align:center}
.exam-navigator{display:grid;grid-template-columns:repeat(18,1fr);gap:5px;margin:12px 0 18px;max-height:112px;overflow:auto;padding:8px;background:#f7f9fb;border:1px solid #e1e6ec;border-radius:12px}
.exam-nav-q{padding:6px 2px;border:1px solid #d8e0e8;background:#fff;border-radius:7px;font-size:.75rem;cursor:pointer}.exam-nav-q.current{outline:2px solid #183b61}.exam-nav-q.answered{background:#e9f4ee}.exam-nav-q.marked{box-shadow:inset 0 -3px 0 #b38b35}
.rule-review-head{display:flex;justify-content:space-between;align-items:center}.rule-list{display:grid;gap:10px;margin:14px 0}.rule-row{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:12px;border:1px solid #e1e6ec;border-radius:12px;background:#fff}.rule-row>span{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:#10243d;color:#fff;font-weight:700}.rule-row p{margin:4px 0}.rule-row small{color:#74808d}
.danger-btn{background:#fff;border:1px solid #b55a5a;color:#8f3232;border-radius:9px;padding:10px 14px;cursor:pointer}.danger-btn:hover{background:#fff2f2}
.break-card{text-align:center;padding:38px 16px}.break-card .exam-timer{display:inline-block;font-size:2rem;margin:20px 0}
.result-summary{margin:18px 0}.domain-result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0}.domain-result-grid>div{padding:12px;border-radius:10px;background:#f7f9fb;display:flex;flex-direction:column;gap:4px}.review-pre{white-space:pre-wrap;background:#f7f9fb;border:1px solid #e1e6ec;padding:12px;border-radius:10px}
@media(max-width:850px){.exam-navigator{grid-template-columns:repeat(10,1fr)}.exam-toolbar{flex-direction:column}.domain-result-grid{grid-template-columns:1fr}}
.exam-rules-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:12px 0}.exam-rules-grid>div{background:#f7f9fb;border:1px solid #e1e6ec;border-radius:10px;padding:10px;text-align:center}.exam-rules-grid b{display:block;font-size:1.2rem;color:#10243d}.exam-rules-grid span{font-size:.76rem;color:#687586}@media(max-width:700px){.exam-rules-grid{grid-template-columns:repeat(2,1fr)}}

/* v3.9 landing / sales experience */
.auth-gate{min-height:100vh;background:#071d35;padding:0;display:grid;place-items:stretch;overflow:auto}
.sales-shell{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.18fr) minmax(420px,.82fr);background:#071d35}
.sales-panel{position:relative;overflow:hidden;padding:clamp(34px,6vw,86px);display:flex;flex-direction:column;color:#fff;background:radial-gradient(circle at 78% 26%,rgba(29,84,145,.36),transparent 32%),linear-gradient(145deg,#061a31 0%,#0b2a50 64%,#0d3563 100%)}
.sales-panel:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(255,255,255,.06);border-radius:50%;right:-220px;bottom:-150px;box-shadow:0 0 0 70px rgba(255,255,255,.025),0 0 0 140px rgba(255,255,255,.018)}
.sales-brand{display:flex;align-items:center;gap:13px;font-weight:700;letter-spacing:.01em;position:relative;z-index:1}.sales-brand img{width:46px;height:46px;border-radius:13px;object-fit:cover;box-shadow:0 8px 22px rgba(0,0,0,.22)}.sales-brand span{font:600 18px var(--serif)}
.sales-copy{margin:auto 0;max-width:780px;position:relative;z-index:1}.sales-kicker{font-size:11px;text-transform:uppercase;letter-spacing:.16em;font-weight:800;color:#f0c25c}.sales-copy h1{font:600 clamp(46px,6vw,78px)/.99 var(--serif);letter-spacing:-.035em;margin:16px 0 20px;color:#fff}.sales-copy>p{font-size:clamp(18px,2vw,24px);line-height:1.52;color:#d9e5ef;max-width:710px;margin:0}.sales-benefits{display:flex;flex-wrap:wrap;gap:10px 22px;margin:28px 0;color:#edf4fa;font-size:14px}.sales-benefits span{white-space:nowrap}.sales-cta-row{display:flex;gap:12px;align-items:center;margin-top:6px}.sales-cta{border:0;border-radius:14px;padding:14px 20px;background:#d5a43e;color:#0d2438;font-weight:800;cursor:pointer;box-shadow:0 9px 25px rgba(214,165,63,.2)}.sales-cta:hover{transform:translateY(-1px)}.sales-link-btn{border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:13px 20px;background:rgba(255,255,255,.06);color:#fff;font-weight:700;cursor:pointer}.sales-copy small{display:block;color:#9fb3c6;margin-top:16px;font-size:11px}
.auth-card{width:auto;max-width:none;border-radius:0;padding:clamp(34px,5vw,72px);display:flex;flex-direction:column;justify-content:center;box-shadow:none;background:#fbfaf6}.auth-brand-mobile{display:none}.auth-eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:.14em;font-weight:800;color:var(--blue)}.auth-card h2{font:600 clamp(31px,3vw,43px)/1.05 var(--serif);margin:10px 0 8px;color:#10273c}.auth-sub{font-size:15px;margin:0 0 12px}.auth-tabs{margin:22px 0 18px}.auth-tabs button{padding:12px;border-radius:12px;font-weight:700}.auth-form{gap:12px}.auth-form input{padding:14px 15px;border:1px solid #d8e1e6;border-radius:12px;background:#fff;font-size:15px;outline:none}.auth-form input:focus{border-color:#7aa2bd;box-shadow:0 0 0 3px rgba(47,111,148,.11)}.auth-form .primary{padding:14px;border-radius:12px;font-size:14px}.auth-trial-link{margin-top:18px;border:0;background:transparent;color:#2f6f94;font-weight:700;cursor:pointer;text-align:left;padding:0}.sidebar-logo{width:38px;height:38px;border-radius:11px;object-fit:cover;flex:0 0 auto}
.trial-overlay{position:fixed;inset:0;z-index:100;background:rgba(3,16,29,.84);backdrop-filter:blur(8px);display:grid;place-items:center;padding:22px}.trial-card{width:min(820px,100%);max-height:92vh;overflow:auto;background:#fbfaf6;border-radius:22px;padding:clamp(22px,4vw,38px);box-shadow:0 35px 90px rgba(0,0,0,.4)}.trial-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.trial-head h2{font-size:clamp(27px,4vw,40px);margin:7px 0 10px}.trial-close{border:0;background:transparent;font-size:34px;color:#60717e;cursor:pointer}.trial-progress{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:center;margin:14px 0 24px;font-size:11px;font-weight:700;color:#52636f}.trial-track{height:7px;border-radius:99px;background:#e2e7e8;overflow:hidden}.trial-track i{display:block;height:100%;width:20%;background:#d5a43e;transition:width .25s}.trial-question h3{font:600 22px/1.45 var(--serif);margin:0 0 18px}.trial-option{width:100%;display:flex;gap:12px;text-align:left;border:1px solid #dce4e8;background:#fff;border-radius:13px;padding:13px 15px;margin:9px 0;cursor:pointer;line-height:1.45}.trial-option b{width:26px;height:26px;border-radius:50%;background:#eef4f7;display:grid;place-items:center;flex:0 0 auto}.trial-option.selected{border-color:#2f6f94;background:#f1f7fb}.trial-option.correct{border-color:#5d998c;background:#eef8f5}.trial-option.wrong{border-color:#c98087;background:#fcf1f2}.trial-feedback{margin-top:16px;background:#fff;border-left:4px solid #d5a43e;border-radius:0 12px 12px 0;padding:14px 16px;color:#455660}.trial-feedback strong{color:#17232d}.trial-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.trial-actions .primary,.trial-actions .sales-cta{min-width:145px}
@media(max-width:980px){.sales-shell{grid-template-columns:1fr}.sales-panel{min-height:auto;padding:34px 28px 38px}.sales-copy{margin:55px 0 0}.sales-copy h1{font-size:48px}.auth-card{padding:38px 28px 46px}.sales-benefits{font-size:13px}.sales-panel:after{display:none}}
@media(max-width:620px){.sales-brand span{font-size:15px}.sales-copy h1{font-size:39px}.sales-copy>p{font-size:17px}.sales-benefits{display:grid;gap:8px}.sales-cta-row{flex-direction:column;align-items:stretch}.sales-cta,.sales-link-btn{width:100%}.auth-card h2{font-size:31px}.trial-progress{grid-template-columns:1fr}.trial-actions{flex-direction:column}.trial-actions button{width:100%}}

.build-version-badge{position:fixed;right:12px;bottom:10px;font-size:10px;color:#8795a1;opacity:.75;z-index:9999;user-select:none}


/* v3.9.3 — hero viewport refinement */
.landing-hero{
  min-height:100svh;
  height:auto;
  display:flex;
  align-items:center;
  overflow:hidden;
  padding:clamp(28px,5vh,56px) clamp(28px,4vw,64px);
  box-sizing:border-box;
}
.landing-hero-inner{
  width:min(100%, 1120px);
  margin:0 auto;
}
.hero-eyebrow{
  font-size:clamp(12px,1vw,16px);
  line-height:1.2;
  margin-bottom:clamp(16px,2vh,24px);
}
.landing-hero h1,
.hero-title{
  font-size:clamp(56px,7.2vw,104px) !important;
  line-height:.94 !important;
  letter-spacing:-0.045em;
  margin:0 0 clamp(22px,3vh,34px) !important;
  max-width:900px;
}
.hero-subtitle,
.landing-hero .hero-copy{
  font-size:clamp(22px,2.2vw,34px) !important;
  line-height:1.35 !important;
  max-width:930px;
  margin-bottom:clamp(20px,2.5vh,30px) !important;
}
.hero-benefits,
.landing-hero .benefit-row{
  gap:clamp(14px,2vw,30px);
  margin-top:clamp(12px,2vh,20px);
}
.hero-benefits li,
.landing-hero .benefit,
.landing-hero .benefit-row > *{
  font-size:clamp(16px,1.3vw,22px) !important;
  line-height:1.25;
}
.hero-actions{
  margin-top:clamp(24px,3vh,36px);
}
.hero-actions .btn,
.hero-actions button,
.hero-actions a{
  font-size:clamp(16px,1.2vw,20px);
  padding:14px 24px;
}

/* Short-height laptops */
@media (max-height: 820px){
  .landing-hero{
    align-items:flex-start;
    padding-top:24px;
    padding-bottom:24px;
  }
  .landing-hero h1,
  .hero-title{
    font-size:clamp(52px,6.2vw,82px) !important;
    line-height:.93 !important;
    margin-bottom:18px !important;
  }
  .hero-subtitle,
  .landing-hero .hero-copy{
    font-size:clamp(19px,1.8vw,28px) !important;
    margin-bottom:16px !important;
  }
  .hero-benefits,
  .landing-hero .benefit-row{
    margin-top:10px;
    gap:12px 22px;
  }
  .hero-benefits li,
  .landing-hero .benefit,
  .landing-hero .benefit-row > *{
    font-size:clamp(15px,1.1vw,18px) !important;
  }
  .hero-actions{ margin-top:18px; }
}

/* Narrow screens */
@media (max-width: 820px){
  .landing-hero{
    padding:28px 22px 34px;
    min-height:100svh;
  }
  .landing-hero h1,
  .hero-title{
    font-size:clamp(48px,13vw,72px) !important;
    line-height:.94 !important;
  }
  .hero-subtitle,
  .landing-hero .hero-copy{
    font-size:clamp(19px,5.2vw,27px) !important;
  }
  .hero-benefits,
  .landing-hero .benefit-row{
    display:grid;
    grid-template-columns:1fr;
  }
}


/* ============================================================
   v3.9.4 — landing page MUST fit in one desktop viewport
   Targets the actual v3.9 sales classes (sales-shell/sales-panel).
   ============================================================ */
@media (min-width: 981px) {
  html, body {
    height: 100%;
    overflow: hidden;
  }

  .auth-gate {
    height: 100dvh !important;
    min-height: 0 !important;
    overflow: hidden !important;
  }

  .sales-shell {
    height: 100dvh !important;
    min-height: 0 !important;
    overflow: hidden !important;
    grid-template-columns: minmax(0, 1.16fr) minmax(430px, .84fr);
  }

  .sales-panel {
    height: 100dvh;
    min-height: 0;
    padding: clamp(26px, 3.5vh, 46px) clamp(34px, 4vw, 66px) !important;
    justify-content: flex-start;
  }

  .sales-brand {
    flex: 0 0 auto;
  }

  .sales-brand img {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }

  .sales-brand span {
    font-size: clamp(17px, 1.45vw, 24px);
  }

  .sales-copy {
    margin: clamp(28px, 5.2vh, 54px) 0 0 !important;
    max-width: 790px;
  }

  .sales-kicker {
    font-size: clamp(10px, .78vw, 13px);
  }

  .sales-copy h1 {
    font-size: clamp(48px, 4.55vw, 72px) !important;
    line-height: .98 !important;
    letter-spacing: -.035em;
    margin: clamp(12px, 1.8vh, 18px) 0 clamp(16px, 2.1vh, 22px) !important;
    max-width: 760px;
  }

  .sales-copy > p {
    font-size: clamp(17px, 1.55vw, 25px) !important;
    line-height: 1.42 !important;
    max-width: 760px;
  }

  .sales-benefits {
    margin: clamp(16px, 2.2vh, 22px) 0 !important;
    gap: 8px 20px !important;
    font-size: clamp(12px, 1vw, 16px) !important;
  }

  .sales-cta-row {
    margin-top: 2px !important;
  }

  .sales-cta,
  .sales-link-btn {
    padding: 11px 17px !important;
    font-size: 13px !important;
    border-radius: 12px !important;
  }

  .sales-copy small {
    margin-top: 11px !important;
    font-size: 10px !important;
  }

  .auth-card {
    height: 100dvh;
    min-height: 0;
    overflow: hidden;
    padding: clamp(28px, 4vh, 48px) clamp(44px, 5vw, 82px) !important;
    justify-content: center;
  }

  .auth-eyebrow {
    font-size: 9px !important;
  }

  .auth-card h2 {
    font-size: clamp(30px, 2.7vw, 45px) !important;
    line-height: 1.03 !important;
    margin: 8px 0 6px !important;
  }

  .auth-sub {
    font-size: clamp(13px, 1.05vw, 17px) !important;
    margin-bottom: 8px !important;
  }

  .auth-tabs {
    margin: 16px 0 12px !important;
  }

  .auth-tabs button {
    padding: 10px !important;
  }

  .auth-form {
    gap: 9px !important;
  }

  .auth-form input {
    padding: 11px 13px !important;
    font-size: 14px !important;
  }

  .auth-form .primary {
    padding: 11px !important;
    font-size: 13px !important;
  }

  .auth-trial-link {
    margin-top: 12px !important;
    font-size: 12px !important;
  }
}

/* Extra compression for common 768–900px-high laptop screens */
@media (min-width: 981px) and (max-height: 900px) {
  .sales-panel {
    padding-top: 28px !important;
    padding-bottom: 24px !important;
  }

  .sales-copy {
    margin-top: 28px !important;
  }

  .sales-copy h1 {
    font-size: clamp(46px, 4.15vw, 64px) !important;
    margin: 10px 0 15px !important;
  }

  .sales-copy > p {
    font-size: clamp(16px, 1.4vw, 22px) !important;
    line-height: 1.38 !important;
  }

  .sales-benefits {
    margin: 14px 0 !important;
    font-size: clamp(12px, .95vw, 15px) !important;
  }

  .sales-copy small {
    margin-top: 8px !important;
  }

  .auth-card {
    padding-top: 24px !important;
    padding-bottom: 24px !important;
  }

  .auth-card h2 {
    font-size: clamp(29px, 2.45vw, 40px) !important;
  }

  .auth-tabs {
    margin: 13px 0 10px !important;
  }

  .auth-form input {
    padding: 10px 12px !important;
  }

  .auth-form .primary {
    padding: 10px !important;
  }
}

/* Very short desktop windows: keep every CTA visible without page scrolling. */
@media (min-width: 981px) and (max-height: 760px) {
  .sales-brand img { width: 36px; height: 36px; }
  .sales-copy { margin-top: 18px !important; }
  .sales-copy h1 { font-size: clamp(42px, 3.7vw, 56px) !important; }
  .sales-copy > p { font-size: 16px !important; }
  .sales-benefits { margin: 10px 0 !important; font-size: 12px !important; }
  .sales-copy small { display: none; }

  .auth-card h2 { font-size: 30px !important; }
  .auth-sub { font-size: 13px !important; }
  .auth-tabs { margin: 10px 0 8px !important; }
  .auth-form { gap: 7px !important; }
  .auth-form input { padding: 8px 11px !important; }
  .auth-form .primary { padding: 8px !important; }
  .auth-trial-link { margin-top: 8px !important; }
}

.auth-inline-link{border:0;background:transparent;color:var(--blue);font-weight:700;font-size:12px;cursor:pointer;padding:3px 0;text-align:left;width:max-content}.auth-inline-link:hover{text-decoration:underline}.auth-help{margin:0 0 4px;font-size:12px;line-height:1.45;color:var(--muted)}

/* v3.9.6 — only the public homepage is no-scroll. App screens scroll normally. */
@media (min-width:981px){
  html{height:auto!important;overflow:auto!important}
  body{height:auto!important;overflow:auto!important}
  body.landing-active{height:100dvh!important;overflow:hidden!important}
  body:not(.landing-active) .app-shell{min-height:100vh}
  body:not(.landing-active) main{overflow:visible!important}
}
.premium-lock{margin-left:auto;font-style:normal;font-size:9px;padding:3px 6px;border-radius:999px;background:rgba(255,190,40,.15);color:#f0b92e}
#nav button.nav-locked{opacity:.58}
#nav button.nav-locked .premium-lock{display:inline-block}

/* v3.9.8 progress + subscription visibility */
.progress-plan-card{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}
.progress-plan-card h3{margin:6px 0 5px;font-size:26px}
.compact-progress-stats{margin-top:14px}
.exam-history{display:grid;gap:0;margin-top:12px}
.exam-history-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:15px 0;border-bottom:1px solid var(--line)}
.exam-history-row:last-child{border-bottom:0}
.exam-history-row small{display:block;margin-top:4px;color:var(--muted)}
.exam-history-score{text-align:right}
@media(max-width:760px){
  .progress-plan-card,.exam-history-row{align-items:flex-start;flex-direction:column}
  .exam-history-score{text-align:left}
}

/* v3.9.9 protected diagram image loading fix */
.diagram-image-wrap{position:relative;min-height:280px;display:flex;align-items:center;justify-content:center;background:var(--soft);overflow:hidden}
.diagram-image-wrap img{max-width:100%;max-height:420px;display:block;position:relative;z-index:1}
.diagram-image-wrap img.broken{display:none}
.diagram-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;color:var(--muted);font-weight:600;background:var(--soft)}

/* v4.1 guided learning */
.compact-intro{margin-bottom:12px}.continue-strip{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;margin-bottom:14px}.continue-strip h3{font-size:17px;margin:3px 0}.study-overall{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 14px;margin-bottom:10px}.study-overall b{font-size:20px}.study-overall span{font-size:12px;color:var(--muted)}.study-progress-track,.mini-track{height:7px;background:#e9eef2;border-radius:99px;overflow:hidden}.study-progress-track i,.mini-track i{display:block;height:100%;background:#0c3c67;border-radius:99px}.study-checklist{display:grid;gap:7px}.study-row{display:grid;grid-template-columns:30px 1fr 46px;gap:10px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:9px 11px}.study-check{width:28px;height:28px;border-radius:50%;padding:0}.study-check.done{background:#e5f7ee;color:#08784e}.study-row-main>div:first-child{display:flex;justify-content:space-between;font-size:13px}.study-row-main span{color:var(--muted)}.study-pct{text-align:right;font-size:13px}.card-topline{display:flex;align-items:center;justify-content:space-between;gap:10px}.study-status-select{font-size:11px;padding:6px 8px;border:1px solid var(--line);border-radius:9px;background:white}.diagram-toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px}.segmented{display:inline-flex;gap:4px;background:#edf2f6;padding:4px;border-radius:10px}.segmented button{padding:7px 10px;border:0;border-radius:8px;background:transparent;font-size:12px}.segmented button.active{background:#fff;box-shadow:0 1px 4px #0001}.diagram-single{min-height:0}.diagram-viewer{background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px}.diagram-view-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.diagram-view-head h3{font-size:18px;margin:2px 0 7px}.diagram-stage{height:calc(100vh - 330px);min-height:360px;max-height:690px;display:flex;align-items:center;justify-content:center;background:#f6f8fa;border-radius:12px;overflow:hidden;position:relative}.diagram-stage img{width:100%;height:100%;object-fit:contain}.diagram-placeholder{position:absolute;color:var(--muted)}.diagram-nav{display:flex;flex-wrap:wrap;gap:7px;align-items:center;justify-content:center;margin-top:9px}.diagram-nav button{font-size:12px;padding:8px 11px}.diagram-study-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px;font-size:12px;color:var(--muted)}.tricky-mode{margin:0 0 10px}.flashcard{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:15px;padding:14px}.flash-top{display:flex;justify-content:space-between;align-items:center}.flash-front{text-align:center;padding:36px 18px 24px}.flash-front h3{font-size:26px;margin:0 0 10px}.flash-front h3 span{color:var(--muted);font-weight:500}.flash-back{border-top:1px solid var(--line);padding-top:14px}.flash-compare{display:grid;grid-template-columns:1fr 1fr;gap:10px}.flash-compare>div{padding:12px;border-radius:10px;background:#f7f9fb}.flash-ratings{display:flex;justify-content:center;gap:8px;margin-top:12px}.compact-learning-progress{padding:14px}.learning-progress-rows{display:grid;gap:8px;margin-top:8px}.learning-progress-rows>div{display:grid;grid-template-columns:130px 1fr 55px;gap:10px;align-items:center;font-size:12px}.empty-state{text-align:center;padding:24px}.zoom-body:fullscreen{background:#111;padding:20px;display:flex;align-items:center;justify-content:center}.zoom-body:fullscreen img{max-height:96vh;max-width:96vw;object-fit:contain}@media(max-width:800px){.diagram-stage{height:55vh;min-height:300px}.diagram-study-meta,.flash-compare{grid-template-columns:1fr}.diagram-toolbar{align-items:stretch;flex-direction:column}.continue-strip{align-items:flex-start}.learning-progress-rows>div{grid-template-columns:100px 1fr 45px}}

/* v4.1.1 — compact practice builder + visual renderer */
#practice .section-intro{margin-bottom:18px}
#practice .section-intro h2{font-size:clamp(30px,3vw,44px)!important;line-height:1.02!important;margin:4px 0 8px!important}
#practice .section-intro p{font-size:15px!important;line-height:1.45!important;margin:0!important}
#practice .panel{padding:20px 24px!important}
#practice .practice-builder,#practice form{gap:14px!important}
#practice label{font-size:12px!important;margin-bottom:5px!important}
#practice input,#practice select{font-size:15px!important;padding:11px 14px!important;min-height:44px!important}
#practice .check-row,#practice .checkbox-row{gap:18px!important;font-size:13px!important}
#practice .primary{font-size:14px!important;padding:12px 16px!important}
#practice .eyebrow{font-size:10px!important}
#practice #sessionProgress{font-size:11px!important}
#practice #questionCard h3,#practice .question-stem{font-size:clamp(18px,1.55vw,24px)!important;line-height:1.35!important}
#practice .option{font-size:14px!important;padding:12px 14px!important}
.q-visual{margin:14px 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}
.visual-head{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:var(--soft);font-size:11px;font-weight:700}
.visual-content{padding:12px;max-height:420px;overflow:auto}
.generated-visual{width:100%;font-size:13px}
.asset-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:160px}
.asset-visual img{max-width:100%;max-height:360px;object-fit:contain}
.asset-fallback{display:none;color:var(--muted);padding:20px;text-align:center}
.asset-visual.asset-missing img{display:none}.asset-visual.asset-missing .asset-fallback{display:block}
.visual-table{width:100%;border-collapse:collapse;font-size:13px}.visual-table th,.visual-table td{border:1px solid var(--line);padding:7px 9px;text-align:left}.visual-table th{background:var(--soft)}
.visual-table.compact{max-width:640px;margin-top:8px}
.network-nodes{display:flex;gap:10px;flex-wrap:wrap}.network-node{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:58px;min-height:58px;border:2px solid #7aa9e8;border-radius:50%;background:#eef6ff}.network-node small{font-size:10px}.network-edges{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.network-edges span{padding:5px 8px;border-radius:999px;background:var(--soft);font-size:11px}
.visual-json{white-space:pre-wrap;font-size:12px;margin:0}
@media(max-width:760px){#practice .section-intro h2{font-size:28px!important}#practice .panel{padding:16px!important}}

/* v4.1.2 desktop sidebar containment fix */
@media (min-width:821px){
  .app-shell{align-items:stretch;min-height:100vh}
  .sidebar{position:sticky!important;top:0!important;height:100dvh!important;max-height:100dvh!important;min-height:0!important;overflow:hidden!important;background:var(--navy)!important;display:flex!important;flex-direction:column!important;padding-bottom:12px!important}
  .sidebar .brand{flex:0 0 auto}
  .sidebar nav,#nav{flex:1 1 auto!important;min-height:0!important;overflow-y:auto!important;overflow-x:hidden!important;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.22) transparent;padding-right:3px;padding-bottom:6px}
  .sidebar nav::-webkit-scrollbar,#nav::-webkit-scrollbar{width:6px}
  .sidebar nav::-webkit-scrollbar-thumb,#nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.20);border-radius:999px}
  .sidebar nav button,#nav button{flex:0 0 auto;width:100%}
  .side-bottom{flex:0 0 auto!important;margin-top:8px!important;padding:10px 8px 0!important;background:var(--navy)!important;color:#d8e5ec!important;position:relative;z-index:2}
  .side-bottom strong,.side-bottom small,.side-bottom span{color:inherit!important}
}
@media (max-width:820px){.sidebar{overflow:visible!important}.sidebar nav,#nav{overflow-x:auto!important;overflow-y:hidden!important}}


/* v4.1.3 — refreshed sidebar icons */
.sidebar nav button{align-items:center}
.nav-icon{width:20px;height:20px;min-width:20px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 20px;color:currentColor;opacity:.95}
.nav-icon svg{width:20px;height:20px;display:block}
.sidebar nav button span:not(.nav-icon){line-height:1.2}
.sidebar nav button .premium-lock{margin-left:auto}


/* v4.1.4 — tablet/iPad navigation icon visibility fix
   The older <=1100px rule hid every span inside nav, including .nav-icon.
   Keep SVG icon spans visible while hiding only text labels in compact modes. */
@media (max-width:1100px){
  .sidebar nav .nav-icon,
  #nav .nav-icon{
    display:inline-flex!important;
    visibility:visible!important;
    opacity:1!important;
    width:22px!important;
    height:22px!important;
    min-width:22px!important;
    color:currentColor!important;
  }
  .sidebar nav .nav-icon svg,
  #nav .nav-icon svg{
    display:block!important;
    width:22px!important;
    height:22px!important;
    stroke:currentColor!important;
  }
  .sidebar nav button>span:not(.nav-icon),
  #nav button>span:not(.nav-icon){
    display:none!important;
  }
  .sidebar nav button,
  #nav button{
    justify-content:center!important;
    align-items:center!important;
    position:relative;
  }
  /* Keep Premium status as a small unobtrusive gold dot in compact navigation. */
  .sidebar nav button .premium-lock,
  #nav button .premium-lock{
    position:absolute;
    right:7px;
    top:7px;
    width:6px;
    height:6px;
    min-width:6px;
    padding:0!important;
    border-radius:50%;
    font-size:0!important;
    line-height:0!important;
    background:#f0b92e!important;
    box-shadow:0 0 0 2px rgba(240,185,46,.16);
  }
}

/* iPad/small-tablet bottom navigation: icon-first, swipeable, no ugly scrollbar. */
@media (max-width:720px){
  .sidebar{
    padding:6px 8px max(6px, env(safe-area-inset-bottom))!important;
  }
  .sidebar nav,#nav{
    display:flex!important;
    flex-direction:row!important;
    gap:4px!important;
    overflow-x:auto!important;
    overflow-y:hidden!important;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none!important;
    padding:0!important;
  }
  .sidebar nav::-webkit-scrollbar,#nav::-webkit-scrollbar{display:none!important}
  .sidebar nav button,#nav button{
    min-width:52px!important;
    width:52px!important;
    height:48px!important;
    padding:0!important;
    border-radius:12px!important;
    flex:0 0 52px!important;
  }
  .sidebar nav .nav-icon,#nav .nav-icon{
    width:23px!important;
    height:23px!important;
    min-width:23px!important;
  }
  .sidebar nav .nav-icon svg,#nav .nav-icon svg{
    width:23px!important;
    height:23px!important;
  }
  .sidebar nav button.active,#nav button.active{
    background:rgba(255,255,255,.14)!important;
    color:#fff!important;
  }
}

/* v4.1.5 — practice builder reliability + compact typography */
#practice .section-intro h2{font-size:clamp(28px,2.4vw,38px);line-height:1.05;margin-bottom:8px}
#practice .section-intro p{font-size:14px;line-height:1.4;margin:0}
.practice-availability{margin-top:7px;font-size:12px;color:var(--muted);font-weight:600}
#practice .panel{padding:18px 20px}
#practice .form-grid{gap:12px 16px}
#practice .form-grid label{font-size:11px;margin-bottom:5px}
#practice .form-grid input,#practice .form-grid select{font-size:14px;padding:10px 12px;min-height:42px}
#practice .toggle-row{margin:12px 0;font-size:12px;gap:18px}
#practice .primary.wide{font-size:13px;padding:11px 16px}
#practice .message{font-size:12px;margin-top:8px}


/* v4.1.6 — smart practice-builder availability */
.practice-availability{margin-top:8px;font-size:12px;color:var(--muted);line-height:1.35}
.practice-availability strong{color:var(--navy);font-size:12px}
.practice-availability span{opacity:.8}
.practice-availability.zero{color:#9a3c3c}
.toggle-row label.smart-disabled{opacity:.38;cursor:not-allowed}
.toggle-row label.smart-disabled input{cursor:not-allowed}
#practice select option:disabled{display:none}

/* v4.1.7 compact practice builder */
#practice.practice-compact{font-size:13px}
.practice-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:0 0 10px}
.practice-head .eyebrow{font-size:10px!important;letter-spacing:.13em;margin-bottom:2px}
.practice-head h2{font-size:22px!important;line-height:1.05!important;letter-spacing:-.02em;margin:0 0 3px!important}
.practice-head p{font-size:12px!important;line-height:1.35!important;margin:0!important;color:var(--muted)}
.practice-availability{font-size:12px!important;line-height:1.2!important;margin:0!important;text-align:right;color:var(--muted)}
.practice-availability strong{font-size:12px!important;color:var(--ink)}
.practice-availability span{font-size:11px!important}
.practice-progress-strip{display:grid;grid-template-columns:minmax(235px,1.7fr) repeat(4,minmax(70px,.42fr)) auto;align-items:center;border:1px solid var(--line);background:#fff;border-radius:10px;margin:0 0 9px;overflow:hidden}
.practice-progress-main{padding:9px 12px}.practice-progress-title{display:flex;justify-content:space-between;gap:8px;font-size:11px;margin-bottom:5px}.practice-progress-title span{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.practice-progress-title strong{font-size:12px}.practice-progress-track{height:4px;background:#edf1f3;border-radius:99px;overflow:hidden}.practice-progress-track i{display:block;height:100%;background:#2f6fa3;border-radius:99px}
.practice-mini-stat{padding:8px 9px;border-left:1px solid var(--line)}.practice-mini-stat span{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:1px}.practice-mini-stat b{font-size:15px;font-weight:650;color:var(--ink)}
.practice-progress-link{border:0;border-left:1px solid var(--line);background:transparent;padding:12px 11px;font-size:11px;font-weight:700;color:#236792;cursor:pointer;white-space:nowrap}
.practice-builder-panel{padding:14px 16px!important;border-radius:10px!important}
#practice .form-grid{gap:9px 14px!important}#practice .form-grid label{display:block;font-size:12px!important;font-weight:700!important;line-height:1.15!important;margin:0 0 4px!important;color:#344650}
#practice .form-grid input,#practice .form-grid select{height:40px!important;min-height:40px!important;padding:7px 11px!important;font-size:13px!important;border-radius:9px!important}
#practice .toggle-row{margin:10px 0 11px!important;gap:17px!important;flex-wrap:wrap}#practice .toggle-row label{font-size:12px!important;gap:6px!important}#practice .toggle-row input{width:15px;height:15px}
#practice #createPractice{min-height:38px!important;padding:8px 12px!important;font-size:12px!important;border-radius:8px!important}#practice #practiceMessage{font-size:12px!important;margin-top:6px!important}
#practice .session-top h3,#practice #sessionProgress{font-size:18px!important}.practice-compact .question-stem{font-size:20px!important;line-height:1.35!important}
@media(max-width:1050px){.practice-head{align-items:flex-start;flex-direction:column;gap:5px}.practice-availability{text-align:left}.practice-progress-strip{grid-template-columns:minmax(220px,1fr) repeat(2,minmax(70px,.35fr))}.practice-progress-link{border-top:1px solid var(--line);border-left:0}}
@media(max-width:700px){.practice-head h2{font-size:20px!important}.practice-progress-strip{grid-template-columns:1fr 1fr}.practice-progress-main{grid-column:1/-1}.practice-progress-link{grid-column:1/-1}#practice .form-grid{grid-template-columns:1fr!important}}


/* v4.1.8 — guided Topic Notes experience */
#notes .section-intro h2{font-size:24px!important;line-height:1.1;margin:4px 0 6px!important}
#notes .section-intro p{font-size:12px;line-height:1.4;margin:0}
.notes-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:8px 0 8px}
.notes-toolbar-right{display:flex;gap:8px;align-items:center}
.notes-toolbar select,.compact-search{height:36px;padding:7px 10px;border:1px solid var(--line);border-radius:9px;background:#fff;font-size:12px}
.compact-search{width:220px}
.notes-progress-line{display:flex;gap:16px;align-items:center;min-height:28px;margin-bottom:8px;color:var(--muted);font-size:11px}
.notes-progress-line b{color:var(--ink)}
.notes-study-view{max-width:1040px}
.note-viewer{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
.note-view-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;padding:16px 18px 12px;border-bottom:1px solid var(--line)}
.note-view-head h3{font:600 20px/1.2 var(--serif);margin:4px 0 0}
.note-study-body{padding:14px 18px 10px}
.note-summary{font-size:12px;line-height:1.5;margin:0 0 12px;color:#45535e}
.note-section-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.note-section-grid section{border:1px solid var(--line);background:#fafcfd;border-radius:10px;padding:10px 12px;min-height:78px}
.note-section-grid h4{font:700 11px/1.2 var(--sans);margin:0 0 6px;color:var(--navy)}
.note-section-grid p,.note-section-grid li{font-size:11px;line-height:1.45;color:#46535d}
.note-section-grid p{margin:0}.note-section-grid ul{margin:0;padding-left:17px}
.note-do-first{background:#eef7f4!important;border-color:#d6ebe4!important}
.note-traps{background:#fbf4f4!important;border-color:#efd9dc!important}
.note-memory{background:#faf6ec!important;border-color:#eadfca!important}
.note-nav{display:flex;gap:7px;align-items:center;flex-wrap:wrap;padding:10px 18px 14px;border-top:1px solid var(--line)}
.note-nav button{font-size:11px;padding:8px 11px}
.note-nav #noteNextUnstudied{margin-left:auto}
.browse-note{min-height:180px;display:flex;flex-direction:column}
.browse-note .summary{flex:1;font-size:11px}
.browse-note h3{font-size:17px}
@media(max-width:820px){.notes-toolbar{align-items:stretch;flex-direction:column}.notes-toolbar-right{width:100%}.notes-toolbar select,.compact-search{flex:1;min-width:0}.note-section-grid{grid-template-columns:1fr}.note-nav #noteNextUnstudied{margin-left:0}.notes-study-view{max-width:none}}


/* ============================================================
   v4.1.9 — cleaner page hierarchy / no duplicate page titles
   ============================================================ */
.topbar{height:76px;padding:12px 24px}
.topbar h1{font-size:22px!important;line-height:1.1!important;margin:2px 0 0!important}
.topbar .eyebrow{font-size:8px!important}

/* The sticky top bar already names the current page. Do not repeat the same title below it. */
.view > .section-intro{margin:0 0 12px!important;padding:0!important;min-height:0!important}
.view > .section-intro > div > .eyebrow,
.view > .section-intro > div > h2{display:none!important}
.view > .section-intro > div > p{font-size:12px!important;line-height:1.4!important;margin:0!important;color:var(--muted)!important}
.view > .section-intro > input.search{font-size:12px!important;min-height:34px!important;padding:7px 10px!important}

/* Guided pages start with the controls, not a second oversized title block. */
#notes .notes-toolbar,#diagrams .diagram-toolbar{margin-top:0!important}
#notes,#diagrams,#tricky,#studyplan,#progress,#billing,#review,#exams{padding-top:18px!important}

/* Keep internal content headings compact and useful. */
#practice .practice-head h2{font-size:19px!important;line-height:1.15!important;margin:2px 0 4px!important}
#practice .practice-head p{font-size:12px!important;line-height:1.4!important;margin:0!important}
#coach h2{font-size:20px!important}
.diagram-view-head h3,.note-view-head h3{font-size:17px!important;line-height:1.2!important}
.diagram-view-head .eyebrow,.note-view-head .eyebrow{font-size:8px!important}

/* Compact, unambiguous learning actions. */
.diagram-nav{gap:6px!important;margin-top:8px!important}
.diagram-nav button,.note-nav button{font-size:11px!important;padding:7px 10px!important;min-height:32px!important}
.diagram-study-meta{font-size:11px!important;line-height:1.35!important}

@media(max-width:820px){
  .topbar{height:64px;padding:9px 14px}
  .topbar h1{font-size:18px!important}
  .view{padding-top:14px!important}
}


/* ============================================================
   v4.2.0 — compact learner dashboard
   The signed-in app is a productivity UI, not a marketing page.
   ============================================================ */
#dashboard.view{padding-top:18px}
#dashboard .hero-card.dashboard-summary{
  grid-template-columns:minmax(0,1fr) 165px;
  gap:20px;
  padding:20px 24px;
  border-radius:16px;
  min-height:0;
}
#dashboard .hero-card.dashboard-summary .eyebrow{font-size:9px;letter-spacing:.11em}
#dashboard .hero-card.dashboard-summary h2{
  font:600 24px/1.15 var(--serif) !important;
  margin:6px 0 7px !important;
  letter-spacing:-.01em;
}
#dashboard .hero-card.dashboard-summary p{
  font-size:13px;
  line-height:1.45;
  margin:0;
  max-width:700px;
}
#dashboard .hero-card.dashboard-summary .button-row{margin-top:14px;gap:7px}
#dashboard .hero-card.dashboard-summary .button-row button{
  font-size:11px;
  padding:8px 12px;
  min-height:34px;
}
#dashboard .ring-card{padding-left:18px}
#dashboard .ring{
  width:88px;
  height:88px;
  border-width:7px;
}
#dashboard .ring span{font:600 21px var(--serif)}
#dashboard .ring small{font-size:8px}
#dashboard .ring-card p{font-size:9px;line-height:1.25;margin-top:7px}
#dashboard .continue-strip{padding:10px 13px;margin-top:10px;margin-bottom:10px}
#dashboard .continue-strip h3{font-size:14px;margin:2px 0}
#dashboard .stat-grid{gap:8px;margin:10px 0}
#dashboard .stat{padding:10px 12px;border-radius:12px}
#dashboard .stat b{font-size:20px;margin:2px 0}
#dashboard .two-col{gap:10px}
#dashboard .panel{padding:14px}
#dashboard .panel h3{font-size:15px}

@media(max-width:900px){
  #dashboard .hero-card.dashboard-summary{grid-template-columns:1fr 130px;padding:16px 18px}
  #dashboard .hero-card.dashboard-summary h2{font-size:20px !important}
  #dashboard .hero-card.dashboard-summary p{font-size:12px}
  #dashboard .ring{width:76px;height:76px}
  #dashboard .ring span{font-size:18px}
}
@media(max-width:680px){
  #dashboard .hero-card.dashboard-summary{grid-template-columns:1fr;padding:15px}
  #dashboard .ring-card{border-left:0;border-top:1px solid rgba(255,255,255,.18);padding:12px 0 0;grid-template-columns:auto 1fr;justify-items:start;text-align:left;gap:10px}
  #dashboard .ring{width:64px;height:64px}
}

/* v4.2.1 */
.study-status-badge{display:inline-flex;align-items:center;min-height:26px;padding:4px 9px;border-radius:999px;font-size:11px;font-weight:700;border:1px solid var(--line);background:#fff;color:var(--muted)}
.study-status-badge.status-reviewed,.study-status-badge.status-mastered{background:#edf8f1;color:#176a45;border-color:#bfe6ce}.study-status-badge.status-needs_review{background:#fff6e6;color:#9a6400;border-color:#f1d28e}
.review-toggle{background:#fff!important;color:var(--ink)!important;border-color:var(--line)!important;box-shadow:none!important}.review-toggle.is-marked{background:#fff4d8!important;color:#8a5a00!important;border-color:#e6bd55!important}button.is-complete{background:#edf8f1!important;color:#176a45!important;border-color:#bfe6ce!important}
.tricky-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.tricky-study-viewer{max-width:980px;margin:0 auto}.tricky-guide-sections{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tricky-guide-sections section{border:1px solid var(--line);border-radius:13px;padding:12px 14px;background:#fff}.tricky-guide-sections section h4{font-size:12px;margin:0 0 7px;color:var(--navy)}.tricky-guide-sections section p{font-size:13px;line-height:1.45;margin:0}.tricky-guide-sections .tricky-what,.tricky-guide-sections .tricky-memory{grid-column:1/-1}.tricky-definition-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.tricky-definition-grid>div{padding:10px 12px;border-radius:10px;background:var(--soft)}.tricky-definition-grid b{display:block;font-size:12px;margin-bottom:4px}.tricky-guide-sections .tricky-trap{background:#fff7f7}.tricky-guide-sections .tricky-memory{background:#f7f3ff}.vs-inline{font-family:var(--sans);font-size:.6em;color:var(--muted);font-weight:600}
.practice-focus-row{display:grid;grid-template-columns:auto minmax(230px,320px);align-items:end;gap:18px;margin:10px 0 12px}.practice-focus{display:grid;gap:5px;font-size:12px;font-weight:700}.practice-focus select{font-size:12px;padding:9px 11px;min-height:38px}.compact-check{font-size:12px!important;min-height:38px;display:flex!important;align-items:center!important}
@media(max-width:760px){.tricky-guide-sections,.tricky-definition-grid{grid-template-columns:1fr}.tricky-guide-sections .tricky-what,.tricky-guide-sections .tricky-memory{grid-column:auto}.tricky-toolbar{align-items:stretch;flex-direction:column}.practice-focus-row{grid-template-columns:1fr}}

/* v4.2.2 exam readability, pause, report cards */
#examFeedback .feedback,#examReviewCard .feedback,.exam-session .feedback{font-size:13px!important;line-height:1.55!important}#examFeedback .feedback p,#examReviewCard .feedback p,.exam-session .feedback p{font-size:13px!important;line-height:1.55!important;color:#3d4b56!important}#examFeedback .feedback b,#examReviewCard .feedback b,.exam-session .feedback b{font-size:14px!important}#examReviewCard .question-stem{font-size:16px!important;line-height:1.45!important}.pause-card{text-align:center;padding:26px 18px;border:1px solid var(--line);border-radius:16px;background:#fff}.pause-card h3{font-size:18px;margin:7px 0}.pause-card p{font-size:12px;max-width:620px;margin:0 auto 12px}.pause-time{font:600 28px var(--serif);margin:12px 0;color:var(--navy)}
.progress-summary-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:10px 0 18px}.progress-summary-strip>div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:11px 13px}.progress-summary-strip span{display:block;font-size:10px;color:var(--muted)}.progress-summary-strip b{font:600 20px var(--serif);display:block;margin-top:3px}.progress-summary-strip small{font-size:9px;color:var(--muted)}.report-section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin:18px 0 8px}.report-section-head h3{font-size:16px;margin:3px 0 0}.report-section-head small{font-size:9px;color:var(--muted);max-width:430px;text-align:right}.exam-report-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:16px}.exam-report-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px}.exam-report-card.completed{border-color:#b8d8ce}.exam-report-card.in-progress{border-color:#c8dce8}.exam-report-top{display:grid;grid-template-columns:24px 1fr auto;gap:8px;align-items:start}.report-check{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#eef3f5;font-weight:700}.completed .report-check{background:#e7f5ef;color:#27735f}.exam-report-card h4{font-size:13px;margin:2px 0}.report-status{font-size:8px;font-weight:800;letter-spacing:.04em;padding:4px 6px;border-radius:999px;background:#eef3f5;white-space:nowrap}.report-status.pass{background:#e7f5ef;color:#26715e}.report-status.below{background:#fbefef;color:#9a3f47}.exam-report-score{display:flex;align-items:baseline;gap:8px;margin:12px 0 8px}.exam-report-score b{font:600 21px var(--serif)}.exam-report-score span{font-size:10px;color:var(--muted)}.report-action{width:100%;margin-top:10px;padding:8px!important;font-size:10px!important}.report-two-col{display:grid;grid-template-columns:1fr 1fr;gap:10px}.learning-progress-rows{display:grid;gap:10px}.learning-progress-rows>div{display:grid;grid-template-columns:100px 1fr 54px;align-items:center;gap:9px;font-size:10px}.mini-track{height:6px;background:#edf1f3;border-radius:99px;overflow:hidden}.mini-track i{display:block;height:100%;background:var(--blue)}
.exam-report-final h2{font-size:22px;margin:4px 0}.exam-report-final h3{font-size:13px;margin:16px 0 7px}.final-report-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.result-badge{width:82px;height:82px;border-radius:50%;display:grid;place-items:center;font:600 20px var(--serif);background:#eef3f5;border:7px solid #d7e3e8}.result-badge.pass{background:#edf7f4;border-color:#9bc8bc;color:#246a58}.result-badge.below{background:#fbf1f2;border-color:#dfadb1;color:#9a3f47}.benchmark-note{font-size:9px;color:var(--muted)}.result-metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.result-metric{border:1px solid var(--line);border-radius:10px;padding:9px;background:#fafbfc}.result-metric span{display:block;font-size:9px;color:var(--muted)}.result-metric b{display:block;font-size:16px;margin:2px 0}.result-metric small{font-size:9px;color:#5a6873}.report-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}@media(max-width:1050px){.exam-report-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:720px){.progress-summary-strip,.exam-report-cards,.report-two-col,.result-metric-grid{grid-template-columns:1fr}.report-section-head,.final-report-head{align-items:flex-start;flex-direction:column}.report-section-head small{text-align:left}}


/* v4.2.3 — simplified learning architecture */
.learning-path-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;margin-bottom:14px;box-shadow:0 8px 24px rgba(19,52,72,.05)}
.learning-path-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:14px}.learning-path-head h2{font-size:18px!important;margin:3px 0 0!important}.learning-overall{text-align:right}.learning-overall b{display:block;font:700 20px var(--serif);color:var(--navy)}.learning-overall span{font-size:10px;color:var(--muted)}
.learning-workflow{display:flex;align-items:stretch;gap:6px;overflow-x:auto;padding-bottom:3px}.workflow-step{min-width:145px;flex:1;border:1px solid var(--line);border-radius:12px;background:#f8fbfc;padding:10px;display:flex;align-items:center;gap:8px;text-align:left;cursor:pointer;color:var(--text)}.workflow-step:hover{background:#fff}.workflow-num{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#e8f0f4;color:var(--navy);font-size:11px;font-weight:700;flex:0 0 auto}.workflow-num.done{background:#e2f5ea;color:#157147}.workflow-copy{min-width:0;flex:1}.workflow-copy b{display:block;font-size:11px}.workflow-copy small{display:block;font-size:9px;color:var(--muted);margin-top:2px}.workflow-pct{font-size:10px;font-weight:700;color:var(--navy)}.workflow-arrow{align-self:center;color:#9fb0ba;font-size:14px;flex:0 0 auto}
.compact-continue{padding:12px 16px!important;margin-bottom:14px}.compact-continue h3{font-size:14px!important;margin:3px 0!important}.compact-continue p{font-size:11px!important}.compact-continue button{font-size:11px!important;padding:9px 14px!important}
.learning-section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:12px 2px 9px}.learning-section-head h3{font-size:15px!important;margin:2px 0!important}.learning-section-head .text-btn{font-size:11px}
.learning-checklist-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.learning-check-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px}.learning-check-top{display:flex;align-items:flex-start;gap:9px}.learning-check-top>div{flex:1;min-width:0}.learning-check-top h4{font-size:12px;margin:0 0 3px}.learning-check-top p{font-size:10px;color:var(--muted);margin:0}.learning-check-top>b{font-size:12px;color:var(--navy)}.learning-checkmark{width:22px;height:22px;border-radius:50%;background:#edf2f5;display:grid;place-items:center;font-size:10px;color:#78909d;flex:0 0 auto}.learning-checkmark.done{background:#e2f5ea;color:#157147}.learning-check-card .mini-track{margin:10px 0 7px}.learning-check-card .text-btn{font-size:10px;padding:0}
.concept-review-summary{display:flex;align-items:baseline;gap:8px;margin-bottom:12px;color:var(--muted);font-size:11px}.concept-review-summary b{font:700 22px var(--serif);color:var(--navy)}.concept-review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.concept-review-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px;display:flex;justify-content:space-between;gap:16px;align-items:center}.concept-review-card h3{font-size:13px!important;margin:3px 0 4px!important}.concept-review-card p{font-size:10px;margin:0;color:var(--text)}.concept-review-card small{font-size:9px;color:var(--muted)}.concept-review-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}.concept-review-actions button{font-size:10px!important;padding:8px 10px!important}
.practice-report-mini{display:grid;grid-template-columns:1fr 1fr;gap:10px}.practice-report-mini>div{border-bottom:1px solid var(--line);padding:7px 0}.practice-report-mini span{display:block;font-size:9px;color:var(--muted)}.practice-report-mini b{font-size:13px;color:var(--navy)}
@media(max-width:1000px){.learning-checklist-cards{grid-template-columns:repeat(2,minmax(0,1fr))}.concept-review-grid{grid-template-columns:1fr}.learning-workflow{padding-bottom:6px}.workflow-step{min-width:135px}}
@media(max-width:640px){.learning-checklist-cards{grid-template-columns:1fr}.learning-path-head{align-items:flex-start}.workflow-arrow{display:none}.concept-review-card{align-items:flex-start;flex-direction:column}.concept-review-actions{width:100%}}

/* v4.2.4 review actions made explicit */
.review-filter-row{margin:0 0 12px;display:inline-flex;max-width:100%;overflow-x:auto}
.flash-rating-msg{font-size:12px;font-weight:600;color:var(--green);min-height:18px;margin-top:7px}
.flash-ratings button{min-width:92px}
.concept-review-actions .text-btn:disabled{opacity:.7;cursor:default}


/* ============================================================
   v4.2.5 — high-trust conversion landing page
   ============================================================ */
@media (min-width:981px){
  .sales-panel{padding:30px 46px!important}
  .sales-copy{margin:30px 0 0!important;max-width:820px}
  .sales-copy h1{font-size:clamp(40px,4.05vw,58px)!important;line-height:1.01!important;letter-spacing:-.035em;margin:12px 0 16px!important;max-width:820px}
  .sales-copy>p{font-size:clamp(16px,1.35vw,20px)!important;line-height:1.42!important;max-width:780px}
  .sales-benefits-outcome{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px!important;margin:20px 0 16px!important}
  .sales-benefits-outcome span{white-space:normal!important;border:1px solid rgba(255,255,255,.11);background:rgba(255,255,255,.05);border-radius:12px;padding:10px 11px}
  .sales-benefits-outcome b{display:block;font-size:12px;color:#fff;margin-bottom:3px}
  .sales-benefits-outcome small{display:block;margin:0;font-size:10px!important;line-height:1.35;color:#bdd0df}
  .sales-cta-row{margin-top:2px!important}
  .sales-cta{font-size:13px!important;padding:12px 17px!important}
  .sales-link-btn{font-size:12px!important;padding:11px 16px!important}
  .sales-trust-line{font-size:10px;line-height:1.35;color:#aec1d0;margin-top:11px;letter-spacing:.01em}
  .founder-strip{display:flex;align-items:center;gap:10px;margin-top:14px;padding-top:12px;border-top:1px solid rgba(255,255,255,.12);max-width:760px}
  .founder-avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#f0c25c;color:#0b2742;font-size:11px;font-weight:900;flex:0 0 34px}
  .founder-strip b{display:block;font-size:11px;color:#fff;margin-bottom:2px}
  .founder-strip span{display:block;font-size:10px;line-height:1.35;color:#b8cad8}
  .auth-card{padding:30px 48px!important}
  .auth-card h2{font-size:clamp(28px,2.4vw,38px)!important;margin:8px 0 6px!important}
  .auth-sub{font-size:13px!important;margin-bottom:4px!important}
  .auth-tabs{margin:14px 0 12px!important}
  .auth-tabs button{padding:10px!important;font-size:12px!important}
  .auth-form{gap:9px!important}
  .auth-form input{padding:11px 12px!important;font-size:13px!important}
  .auth-form .primary{padding:11px!important;font-size:12px!important}
  .auth-card .signup-primary{background:#d5a43e!important;color:#0d2438!important;border-color:#d5a43e!important;box-shadow:0 8px 22px rgba(213,164,62,.18)}
  .auth-card .signup-primary:hover{filter:brightness(1.03)}
  .auth-trial-link{font-size:11px!important;margin-top:12px!important}
}
@media (min-width:981px) and (max-height:760px){
  .sales-copy{margin-top:15px!important}
  .sales-copy h1{font-size:clamp(34px,3.6vw,48px)!important;margin:9px 0 12px!important}
  .sales-copy>p{font-size:15px!important}
  .sales-benefits-outcome{margin:12px 0 10px!important}
  .sales-benefits-outcome span{padding:8px 9px}
  .founder-strip{margin-top:9px;padding-top:8px}
  .auth-card{padding-top:22px!important;padding-bottom:22px!important}
}
@media (max-width:980px){
  .sales-benefits-outcome{display:grid;grid-template-columns:1fr;gap:8px}
  .sales-benefits-outcome span{white-space:normal}
  .sales-benefits-outcome b{display:block}
  .sales-benefits-outcome small{display:block;margin-top:2px}
  .founder-strip{display:flex;gap:10px;align-items:center;margin-top:16px;padding-top:12px;border-top:1px solid rgba(255,255,255,.12)}
  .founder-avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#f0c25c;color:#0b2742;font-size:11px;font-weight:900;flex:0 0 34px}
  .founder-strip b,.founder-strip span{display:block}
  .founder-strip b{font-size:11px}.founder-strip span{font-size:10px;color:#b8cad8;line-height:1.35}
  .sales-trust-line{font-size:10px;color:#aec1d0;margin-top:10px}
  .auth-card .signup-primary{background:#d5a43e!important;color:#0d2438!important;border-color:#d5a43e!important}
}


/* ============================================================
   v4.2.6 — sales-led split-screen login redesign
   ============================================================ */
@media (min-width:981px){
  body.landing-active{overflow:hidden!important;background:#e9edef}
  .sales-shell-v426{height:100dvh!important;min-height:0!important;grid-template-columns:minmax(0,1.17fr) minmax(470px,.83fr)!important;background:#0a2440}
  .sales-panel-v426{height:100dvh;min-height:0;padding:clamp(28px,4.1vh,52px) clamp(42px,4.6vw,72px)!important;background:radial-gradient(circle at 82% 10%,rgba(42,98,154,.24),transparent 31%),linear-gradient(155deg,#071d37 0%,#0d3159 70%,#123d68 100%)!important}
  .sales-panel-v426:before{content:"";position:absolute;right:-70px;top:-115px;width:470px;height:470px;border-radius:50%;border:1px solid rgba(213,164,62,.16);box-shadow:0 0 0 64px rgba(255,255,255,.025),0 0 0 128px rgba(255,255,255,.018)}
  .sales-panel-v426:after{content:"";position:absolute;left:0;right:0;bottom:0;height:32%;background:linear-gradient(165deg,transparent 0 47%,rgba(10,29,49,.50) 48% 100%);clip-path:polygon(0 62%,13% 78%,28% 57%,42% 79%,55% 54%,69% 74%,82% 42%,100% 70%,100% 100%,0 100%);pointer-events:none}
  .sales-brand{gap:10px!important}.sales-brand img{width:40px!important;height:40px!important;border-radius:11px!important}.sales-brand span{font-size:17px!important}
  .sales-copy-v426{margin:clamp(20px,3.2vh,36px) 0 0!important;max-width:780px!important;z-index:2}
  .sales-copy-v426 .sales-kicker{font-size:10px!important;letter-spacing:.17em!important}
  .sales-copy-v426 h1{font-size:clamp(38px,4.1vw,62px)!important;line-height:1.01!important;letter-spacing:-.035em!important;margin:14px 0 15px!important;max-width:730px}
  .sales-copy-v426 h1 em{font-style:normal;color:#f4c36b}
  .sales-copy-v426>p{font-size:clamp(15px,1.45vw,20px)!important;line-height:1.48!important;max-width:690px!important;color:#e0eaf2!important}
  .sales-benefits-v426{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px!important;margin:18px 0 14px!important}
  .sales-benefits-v426 span{position:relative;white-space:normal!important;min-height:88px;padding:12px!important;border:1px solid rgba(255,255,255,.12);border-radius:12px;background:rgba(255,255,255,.055)}
  .sales-benefits-v426 .benefit-icon{display:block;font-style:normal;color:#f4b338;font-size:17px;line-height:1;margin-bottom:9px}
  .sales-benefits-v426 b{display:block;font-size:11px;color:#fff;margin-bottom:3px}
  .sales-benefits-v426 small{display:block!important;margin:0!important;font-size:9.5px!important;line-height:1.38;color:#bfd0df!important}
  .sales-cta-primary{display:flex;align-items:center;justify-content:center;gap:14px;width:min(420px,100%);font-size:12px!important;padding:12px 17px!important;border-radius:10px!important;background:#f3ad35!important;color:#0a2239!important;box-shadow:none!important}
  .sales-cta-primary span{font-size:16px}
  .testimonial-card{margin:14px 0 0;padding:13px 15px 12px;width:min(590px,100%);border:1px solid rgba(255,255,255,.11);border-radius:12px;background:rgba(255,255,255,.055);position:relative;z-index:2}
  .testimonial-stars{font-size:12px;letter-spacing:2px;color:#ffbf3f;margin-bottom:6px}
  .testimonial-card blockquote{margin:0;color:#eef5fa;font-size:10px;line-height:1.45;font-style:italic}
  .testimonial-card figcaption{display:flex;gap:6px;align-items:baseline;margin-top:8px;font-size:9px;color:#b9cad7}.testimonial-card figcaption b{color:#fff;font-size:9.5px}.testimonial-card figcaption span:before{content:"· ";color:#7893aa}
  .founder-line{display:flex;align-items:center;gap:8px;margin-top:10px;color:#fff;font-size:9.5px;position:relative;z-index:2}.founder-mini{width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:#f3ad35;color:#0a2239;font-size:8px;font-weight:900}
  .auth-card-v426{height:100dvh!important;min-height:0!important;padding:0!important;background:#fbfaf6!important;display:flex!important;align-items:center!important;justify-content:center!important;overflow:hidden!important}
  .auth-inner-v426{width:min(100%,560px);padding:28px 46px}
  .signup-trust-badge{display:inline-flex;align-items:center;border:1px solid #b8e3d2;background:#e8f7f0;color:#07865f;border-radius:999px;padding:7px 12px;font-size:9px;font-weight:800;letter-spacing:.08em;margin-bottom:15px}
  .auth-card-v426 h2{font-size:clamp(28px,2.5vw,39px)!important;line-height:1.04!important;margin:0 0 8px!important;color:#0d2742!important}
  .auth-card-v426 .auth-sub{font-size:13px!important;line-height:1.45!important;margin:0 0 13px!important;max-width:500px;color:#667887}
  .auth-tabs-v426{display:flex!important;gap:26px!important;border-bottom:1px solid #ddd8cc;margin:0 0 16px!important}
  .auth-tabs-v426 button{flex:0 0 auto!important;border:0!important;background:transparent!important;color:#8b8174!important;padding:9px 0 10px!important;border-radius:0!important;font-size:11px!important;font-weight:700!important;border-bottom:2px solid transparent!important;margin-bottom:-1px}
  .auth-tabs-v426 button.active{color:#0b2641!important;border-bottom-color:#efa82f!important}
  .auth-form-v426{gap:10px!important}
  .auth-form-v426 label{display:grid;gap:5px;font-size:10px;font-weight:700;color:#122940}
  .auth-form-v426 input{height:42px;padding:10px 12px!important;border-radius:8px!important;border:1px solid #ddd9d0!important;font-size:12px!important;background:#fff!important}
  .auth-form-v426 .primary{height:44px;padding:10px 14px!important;border-radius:9px!important;font-size:11.5px!important}
  .auth-form-v426 .signup-primary{background:#f3ad35!important;color:#0a2239!important;border:0!important;box-shadow:0 8px 20px rgba(243,173,53,.18)!important;font-weight:800}
  .form-legal{text-align:center;color:#9b9488;font-size:8.5px;margin:0!important;line-height:1.35}
  .auth-or{display:flex;align-items:center;gap:12px;margin:14px 0 11px;color:#a39a8e;font-size:8.5px;letter-spacing:.12em;white-space:nowrap}.auth-or:before,.auth-or:after{content:"";height:1px;flex:1;background:#ded9cf}
  .auth-trial-secondary{width:100%;height:43px;border:1px solid #0a2746;border-radius:9px;background:transparent;color:#0a2746;font-size:11px;font-weight:800;cursor:pointer}
  .auth-trust-strip{display:grid;grid-template-columns:.75fr 1.45fr;gap:14px;margin-top:14px;padding-top:13px;border-top:1px solid #ded9cf;color:#637586;font-size:8.7px;line-height:1.35}.auth-trust-strip span+span{border-left:1px solid #ddd8cf;padding-left:14px}
  .auth-card-v426 .message{font-size:10px;margin-top:6px}
}
@media (min-width:981px) and (max-height:800px){
  .sales-panel-v426{padding-top:24px!important;padding-bottom:24px!important}
  .sales-copy-v426{margin-top:16px!important}
  .sales-copy-v426 h1{font-size:clamp(34px,3.8vw,52px)!important;margin:10px 0 11px!important}
  .sales-copy-v426>p{font-size:14px!important;line-height:1.42!important}
  .sales-benefits-v426{margin:12px 0 10px!important}.sales-benefits-v426 span{min-height:72px;padding:9px!important}.sales-benefits-v426 .benefit-icon{margin-bottom:6px}
  .testimonial-card{margin-top:10px;padding:9px 12px}.testimonial-card blockquote{font-size:9px;line-height:1.35}.testimonial-card figcaption{margin-top:5px}
  .founder-line{margin-top:7px}
  .auth-inner-v426{padding-top:18px;padding-bottom:18px}.signup-trust-badge{margin-bottom:10px}.auth-card-v426 h2{font-size:30px!important}.auth-card-v426 .auth-sub{font-size:11.5px!important;margin-bottom:8px!important}.auth-tabs-v426{margin-bottom:10px!important}.auth-form-v426{gap:7px!important}.auth-form-v426 input{height:36px}.auth-form-v426 .primary,.auth-trial-secondary{height:38px}.auth-or{margin:9px 0 8px}.auth-trust-strip{margin-top:9px;padding-top:9px}
}
@media (max-width:980px){
  .sales-shell-v426{display:block!important;min-height:auto!important;background:#071d37!important}
  .sales-panel-v426{padding:26px 22px!important;min-height:auto!important}
  .sales-copy-v426{margin-top:22px!important}
  .sales-copy-v426 h1{font-size:clamp(35px,8.5vw,54px)!important}
  .sales-copy-v426>p{font-size:15px!important}
  .sales-benefits-v426{grid-template-columns:1fr!important}
  .sales-benefits-v426 span{min-height:0}
  .testimonial-card{width:auto}
  .auth-card-v426{height:auto!important;min-height:auto!important;padding:0!important}
  .auth-inner-v426{width:auto;padding:30px 22px 38px}
}


/* ============================================================
   v4.2.7 — compact sales/login typography + authenticated trial
   ============================================================ */
@media (min-width: 981px) {
  .sales-panel {
    padding: clamp(24px, 3.2vh, 42px) clamp(30px, 3.4vw, 54px) !important;
  }

  .sales-copy {
    margin-top: clamp(18px, 3vh, 32px) !important;
    max-width: 820px;
  }

  .sales-copy h1,
  .sales-panel .sales-copy h1 {
    font-size: clamp(36px, 3.05vw, 52px) !important;
    line-height: .98 !important;
    letter-spacing: -.035em !important;
    margin: 10px 0 16px !important;
    max-width: 760px !important;
  }

  .sales-copy > p {
    font-size: clamp(14px, 1vw, 16px) !important;
    line-height: 1.52 !important;
    max-width: 760px;
  }

  .sales-kicker {
    font-size: 10px !important;
    letter-spacing: .14em !important;
  }

  .sales-benefits-v426 {
    gap: 10px !important;
    margin: 16px 0 14px !important;
  }

  .sales-benefits-v426 > span {
    padding: 13px !important;
    min-height: 92px !important;
  }

  .sales-benefits-v426 b {
    font-size: 12.5px !important;
  }

  .sales-benefits-v426 small {
    font-size: 11px !important;
    line-height: 1.35 !important;
  }

  .sales-cta-primary {
    font-size: 12.5px !important;
    padding: 12px 16px !important;
    margin-top: 2px !important;
  }

  .testimonial-card {
    margin-top: 12px !important;
    padding: 13px 15px !important;
  }

  .testimonial-card blockquote {
    font-size: 11.5px !important;
    line-height: 1.42 !important;
  }

  .testimonial-card figcaption,
  .founder-line {
    font-size: 10.5px !important;
  }

  .auth-card-v426 {
    padding: clamp(28px, 4vh, 46px) clamp(38px, 4vw, 66px) !important;
  }

  .auth-card-v426 h2 {
    font-size: clamp(27px, 2.2vw, 34px) !important;
    line-height: 1.06 !important;
    margin: 10px 0 8px !important;
  }

  .auth-card-v426 .auth-sub {
    font-size: 13px !important;
    line-height: 1.45 !important;
    margin-bottom: 10px !important;
  }

  .signup-trust-badge {
    font-size: 9.5px !important;
  }

  .auth-tabs-v426 button {
    font-size: 12px !important;
    padding: 9px 0 !important;
  }

  .auth-form-v426 label {
    font-size: 11px !important;
  }

  .auth-form-v426 input {
    font-size: 13px !important;
    padding: 10px 12px !important;
  }

  .signup-primary,
  .auth-trial-secondary {
    font-size: 12px !important;
    padding: 11px 14px !important;
  }

  .form-legal,
  .auth-trust-strip {
    font-size: 9.5px !important;
  }
}

.member-free-drill {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  margin:12px 0 18px;
  padding:16px 18px;
}
.member-free-drill h3 {
  margin:4px 0;
  font-size:17px;
}
.member-free-drill p {
  margin:0;
  font-size:12px;
  color:var(--muted);
}
.member-free-drill .primary {
  flex:0 0 auto;
  font-size:12px;
  padding:10px 14px;
}
@media(max-width:720px){
  .member-free-drill{align-items:flex-start;flex-direction:column}
}


/* ============================================================
   v4.2.8 — elegant milestone learning path
   Five dots = five 20% milestones; the next dot may partially fill.
   ============================================================ */
.learning-journey-card{padding:16px 18px 18px!important;overflow:hidden}
.journey-head{margin-bottom:12px!important;align-items:flex-start}
.journey-head h2{font-size:18px!important;line-height:1.1!important;margin:2px 0 3px!important}
.journey-head p{font-size:10px;color:var(--muted);margin:0}
.learning-overall b{font-size:18px!important}

.learning-journey{display:flex;align-items:flex-start;justify-content:center;width:100%;padding:8px 4px 2px;overflow-x:auto;scrollbar-width:none}
.learning-journey::-webkit-scrollbar{display:none}
.journey-stage{border:0;background:transparent;min-width:112px;max-width:148px;flex:1;padding:0 4px;display:flex;flex-direction:column;align-items:center;cursor:pointer;color:var(--navy);position:relative;text-align:center}
.journey-stage:hover .journey-node{transform:translateY(-2px);box-shadow:0 9px 22px rgba(28,72,98,.16)}
.journey-node{position:relative;width:58px;height:58px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 0 0 7px rgba(31,83,113,.07),0 6px 14px rgba(28,72,98,.10);transition:.18s ease;background:var(--journey-color,#1f5575)}
.journey-node svg{width:25px;height:25px}
.journey-check{position:absolute;right:-3px;bottom:-2px;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;background:#15945f;color:white;border:2px solid white;font-size:9px;font-style:normal;font-weight:800}
.journey-label{font-size:11px;font-weight:700;line-height:1.2;margin:10px 0 7px;min-height:27px;display:flex;align-items:flex-start;justify-content:center}
.journey-dots{height:69px;display:flex;flex-direction:column;align-items:center;gap:4px}
.journey-dot{width:9px;height:9px;border-radius:50%;background:#dbe4e9;box-shadow:inset 0 0 0 1px rgba(21,57,78,.03);position:relative;overflow:hidden}
.journey-dot.filled{background:var(--journey-color,#1f5575)}
.journey-dot.partial{background:linear-gradient(to top,var(--journey-color,#1f5575) var(--dot-fill),#dbe4e9 var(--dot-fill))}
.journey-percent{font-size:10px;color:var(--muted);font-weight:700;margin-top:2px}
.journey-connector{flex:0 0 30px;height:58px;display:flex;align-items:center;justify-content:center;position:relative;color:#a8beca}
.journey-connector:before{content:"";position:absolute;left:-8px;right:-8px;height:3px;background:linear-gradient(90deg,#dce8ed,#c9dce4);border-radius:99px}
.journey-connector i{position:relative;z-index:1;width:21px;height:21px;border-radius:50%;display:grid;place-items:center;background:#eef4f7;color:#7291a2;font-style:normal;font-weight:700;font-size:15px}
.tone-navy{--journey-color:#174b73}.tone-teal{--journey-color:#16a7b4}.tone-mint{--journey-color:#31c9a4}.tone-violet{--journey-color:#8376e9}.tone-gold{--journey-color:#e7ad2d}.tone-blue{--journey-color:#2f7dd9}

@media(max-width:1100px){.journey-stage{min-width:105px}.journey-connector{flex-basis:22px}}
@media(max-width:820px){
  .learning-journey{justify-content:flex-start;padding-bottom:8px}
  .journey-stage{min-width:112px;flex:0 0 112px}
  .journey-connector{flex:0 0 24px}
  .journey-node{width:52px;height:52px}
  .journey-node svg{width:22px;height:22px}
  .journey-label{font-size:10px}
  .journey-dots{height:64px}
}


/* ============================================================
   v4.2.9 — simplified landing + live PMP class registration
   ============================================================ */
.sales-copy-v429{margin-top:clamp(22px,3.5vh,38px)!important;max-width:800px}
.sales-copy-v429 h1{font-size:clamp(34px,3vw,50px)!important;line-height:1!important;margin:10px 0 14px!important;max-width:760px}
.sales-copy-v429>p{font-size:14px!important;line-height:1.48!important;max-width:720px;margin-bottom:12px!important}
.sales-proof-row{display:flex;flex-wrap:wrap;gap:8px 18px;margin:12px 0 14px;color:#d7e7ef;font-size:11px;font-weight:600}
.sales-proof-row span{white-space:nowrap}
.sales-cta-primary{max-width:610px}

.live-class-teaser{margin-top:10px;width:min(610px,100%);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:white;border-radius:13px;padding:11px 13px;display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:10px;text-align:left;cursor:pointer}
.live-class-teaser:hover{background:rgba(255,255,255,.10)}
.live-class-icon{width:27px;height:27px;border-radius:9px;background:rgba(244,177,52,.16);color:#f4b134;display:grid;place-items:center}
.live-class-teaser b{display:block;font-size:12px}
.live-class-teaser small{display:block;font-size:10px;color:#abc2cf;margin-top:2px}
.live-class-teaser strong{font-size:10.5px;color:#f6c260;white-space:nowrap}
.testimonial-compact{margin-top:10px!important;padding:11px 13px!important;max-width:760px}
.testimonial-compact blockquote{font-size:10.5px!important;line-height:1.35!important;margin:4px 0 6px!important}
.testimonial-compact .testimonial-stars{font-size:11px}
.testimonial-compact figcaption{font-size:9.5px!important}
.free-drill-note{font-size:10px;color:var(--muted);margin:8px 0 5px;text-align:center}

.live-class-modal{width:min(620px,calc(100vw - 28px));padding:20px}
.live-class-modal .modal-head h3{font-size:20px;margin:2px 0}
.live-class-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:8px 0 16px}
.live-class-summary>div{border:1px solid var(--line);background:var(--soft);border-radius:12px;padding:11px}
.live-class-summary b{display:block;font-size:14px;color:var(--navy)}
.live-class-summary span{display:block;font-size:10px;color:var(--muted);margin-top:2px}
.live-class-form{display:grid;gap:9px}
.live-class-form label{font-size:11px;font-weight:700;color:var(--navy)}
.live-class-form input{display:block;width:100%;margin-top:4px;border:1px solid var(--line);border-radius:10px;padding:10px 11px;font:inherit;font-size:13px;background:white}
.class-date-help{font-size:10px;color:var(--muted);margin:0}
#classRegistrationMessage{font-size:11px;min-height:16px}
#classRegistrationMessage.error{color:#b42318}

@media(min-width:981px) and (max-height:850px){
  .sales-copy-v429{margin-top:16px!important}
  .sales-copy-v429 h1{font-size:clamp(32px,2.75vw,44px)!important;margin:8px 0 11px!important}
  .sales-copy-v429>p{font-size:13px!important;line-height:1.4!important}
  .sales-proof-row{margin:9px 0 10px}
  .live-class-teaser{padding:9px 11px}
  .testimonial-compact{padding:9px 11px!important;margin-top:8px!important}
  .founder-line{margin-top:7px!important}
}
@media(max-width:760px){
  .live-class-summary{grid-template-columns:1fr}
  .live-class-teaser{grid-template-columns:26px 1fr}
  .live-class-teaser strong{grid-column:2}
}

/* v4.3.0 secure payment cleanup */
.secure-payment-note{font-size:11px;font-weight:700;color:#13795b;margin:2px 0 0}
.live-class-form .wide{background:#f4b134;color:#0c2940;border-color:#f4b134}


/* v4.3.1 — program registration admin */
.admin-reg-head,.admin-reg-row{display:grid;grid-template-columns:1.35fr 1.25fr .8fr 1fr .9fr;gap:12px;align-items:center;padding:10px 12px}
.admin-reg-head{font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);border-bottom:1px solid var(--line)}
.admin-reg-row{border-bottom:1px solid var(--line);font-size:12px}
.admin-reg-row>div{min-width:0}
.admin-reg-row b{display:block;font-size:12px;color:var(--navy)}
.admin-reg-row small{display:block;color:var(--muted);font-size:10px;margin-top:3px;line-height:1.25}
.registration-status{display:inline-flex;align-items:center;border-radius:999px;padding:4px 8px;font-size:10px;font-weight:700}
.registration-status.paid{background:#e8f6ef;color:#13795b}
.registration-status.pending{background:#fff3d9;color:#8a5a00}
.registration-actions button{font-size:10px;padding:7px 9px}
@media(max-width:900px){
  .admin-reg-head{display:none}
  .admin-reg-row{grid-template-columns:1fr 1fr}
  .registration-actions{grid-column:1/-1}
}

/* v4.3.2 class Tuesday selector + repaired test card modal */
.live-class-form select{display:block;width:100%;margin-top:4px;border:1px solid var(--line);border-radius:10px;padding:10px 11px;font:inherit;font-size:13px;background:white;color:var(--navy)}
.payment-card .editor-actions{margin-top:12px}


/* ============================================================
   v4.3.3 — live-class modal viewport fit + email diagnostics
   ============================================================ */
#liveClassModal.modal{
  align-items:flex-start!important;
  justify-content:center!important;
  padding:10px 12px!important;
  overflow-y:auto!important;
}
#liveClassModal .modal-card.live-class-modal{
  margin:0 auto!important;
  width:min(620px,calc(100vw - 24px))!important;
  max-height:calc(100dvh - 20px)!important;
  overflow-y:auto!important;
  padding:15px 18px 16px!important;
  border-radius:16px!important;
}
#liveClassModal .modal-head{margin-bottom:7px!important}
#liveClassModal .modal-head h3{font-size:18px!important;line-height:1.05!important}
#liveClassModal .live-class-summary{gap:7px!important;margin:6px 0 11px!important}
#liveClassModal .live-class-summary>div{padding:9px 10px!important}
#liveClassModal .live-class-summary b{font-size:13px!important}
#liveClassModal .live-class-summary span{font-size:9.5px!important}
#liveClassModal .live-class-form{gap:7px!important}
#liveClassModal .live-class-form label{font-size:10.5px!important}
#liveClassModal .live-class-form input,
#liveClassModal .live-class-form select{padding:8px 10px!important;font-size:12px!important;min-height:40px!important}
#liveClassModal .class-date-help,
#liveClassModal .secure-payment-note,
#liveClassModal .form-legal{font-size:9.5px!important;margin:1px 0!important}
#liveClassModal #classRegistrationMessage{font-size:10.5px!important;min-height:14px!important;margin:1px 0!important}
#liveClassModal .wide{padding:10px 12px!important;font-size:11.5px!important;min-height:42px!important}

.admin-email-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:8px 0}
.email-status-chip{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-size:10px;font-weight:700}
.email-status-chip.ready{background:#e8f6ef;color:#13795b}
.email-status-chip.not-ready{background:#fff0ef;color:#b42318}
.admin-email-tools button{font-size:10px;padding:6px 9px}

@media(max-height:700px){
  #liveClassModal.modal{padding:4px 8px!important}
  #liveClassModal .modal-card.live-class-modal{max-height:calc(100dvh - 8px)!important;padding:11px 14px 12px!important}
  #liveClassModal .live-class-summary{margin:4px 0 8px!important}
  #liveClassModal .live-class-form{gap:5px!important}
}

/* v4.3.4 hosted payment cleanup */
.autobooks-buy{font-size:11px!important;padding:9px 12px!important;min-width:150px}
.provider-pill.on{background:#e8f6ef;color:#13795b}

/* v4.3.5 */
a.live-class-teaser{text-decoration:none}
.stripe-buy{font-size:11px!important;padding:9px 12px!important}