.course-topbar{position:sticky;top:0;z-index:35;display:flex;align-items:center;gap:18px;padding:16px min(34px,5vw);border-bottom:1px solid rgba(29,29,29,.78);background:rgba(5,5,5,.9);backdrop-filter:blur(18px)}.course-menu-button{display:inline-flex;width:46px;height:46px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--border);border-radius:16px;background:var(--card);color:var(--text)}.course-menu-button span{display:block;width:18px;height:2px;border-radius:999px;background:var(--text)}.course-nav{margin-left:auto;display:flex;gap:8px;align-items:center}.course-nav a{min-height:40px;display:inline-flex;align-items:center;border:1px solid transparent;border-radius:14px;color:var(--muted);padding:0 13px;font-size:14px;font-weight:800}.course-nav a:hover,.course-nav a.active{border-color:var(--border-blue);background:rgba(2,183,254,.08);color:var(--text)}.course-side-panel{position:fixed;inset:0 auto 0 0;z-index:45;width:min(380px,92vw);transform:translateX(-105%);transition:transform .18s ease;border-right:1px solid var(--border);background:#070707;padding:24px;overflow:auto;box-shadow:var(--shadow)}.course-side-panel.open{transform:translateX(0)}.course-panel-close{width:42px;height:42px;border:1px solid var(--border);border-radius:14px;background:var(--card);color:var(--text);font-size:26px;font-weight:900}.course-backdrop{position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.65)}body.course-menu-open{overflow:hidden}.course-shell{width:min(1500px,calc(100% - 40px));margin:0 auto;padding:34px 0 70px}.course-hero{display:flex;justify-content:space-between;gap:26px;align-items:center;padding:30px}.course-hero h1{margin:10px 0 0;font-size:clamp(42px,5vw,76px);line-height:1.04;letter-spacing:-.04em;background:var(--silver-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.course-hero p:not(.xn-eyebrow){max-width:760px;color:var(--muted);line-height:1.7;font-size:18px}.course-progress-card{min-width:240px;border:1px solid var(--border);border-radius:20px;background:#070707;padding:20px}.course-progress-card span{color:var(--muted);font-weight:800}.course-progress-card strong{display:block;margin-top:8px;font-size:34px}.course-progress-track,.course-progress-track i{display:block;height:10px;border-radius:999px}.course-progress-track{margin-top:16px;background:#202020;overflow:hidden}.course-progress-track i{width:0;background:var(--brand-gradient)}.module-head h2{margin:8px 0 12px}.module-head p:not(.xn-eyebrow){color:var(--muted);line-height:1.55;margin:0 0 18px}.course-side-panel #moduleList{display:grid;gap:10px}.module-item{width:100%;border:1px solid var(--border);border-radius:16px;background:#080808;color:var(--text);padding:14px;text-align:left}.module-item strong{display:block;margin-bottom:5px}.module-item span{color:var(--muted);font-size:12px}.module-item.unlocked{border-color:rgba(0,255,136,.30);background:rgba(0,255,136,.06)}.module-item.active{border-color:rgba(2,183,254,.55);background:rgba(2,183,254,.08)}.module-item.locked{opacity:.58}.lesson-view{padding:26px;margin-top:18px}.lesson-top{display:flex;justify-content:space-between;gap:18px;align-items:flex-start}.lesson-top h2{margin:8px 0 0;font-size:32px}.course-study-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.65fr);gap:24px;margin-top:24px}.study-note-panel,.course-test-panel{border:1px solid var(--border);border-radius:24px;background:#080808;overflow:hidden}.pdf-head{display:flex;justify-content:space-between;gap:18px;align-items:center;border-bottom:1px solid var(--border);padding:18px}.pdf-head h3{margin:8px 0 0}.course-note-page{position:relative;min-height:460px;background:#f4f4f4;color:#111;margin:20px;border-radius:18px;padding:38px;overflow:hidden}.course-note-page h4{font-size:30px;margin:0 0 12px}.course-note-page p{font-size:20px;line-height:1.9}.course-note-page .xn-watermark{position:absolute;inset:auto 20px 20px auto;color:#111;opacity:.08;font-size:30px;font-weight:900}.lesson-actions{display:flex;gap:12px;flex-wrap:wrap;margin:0 20px 20px}.course-test-panel{padding:26px;display:grid;align-content:start;gap:14px}.course-test-panel h3{font-size:34px;margin:0}.course-test-panel p{color:var(--muted);line-height:1.6}.auth-mini-footer{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;padding:30px min(34px,5vw);border-top:1px solid var(--border);background:#070707}.auth-mini-footer div{display:grid;gap:6px}.auth-mini-footer strong{color:#fff}.auth-mini-footer span,.auth-mini-footer a{color:var(--muted);line-height:1.5}@media(max-width:900px){.course-study-grid,.course-hero,.auth-mini-footer{grid-template-columns:1fr;display:grid}.course-nav{overflow:auto;margin-left:0;width:100%}.course-topbar{flex-wrap:wrap}.course-progress-card{width:100%}.course-note-page{min-height:360px;padding:26px}}

/* v21 direct course reader cleanup */
.course-direct-page .course-shell{width:min(1580px,calc(100% - 48px));padding-top:26px;}
.course-direct-page .course-hero{border-radius:34px;background:linear-gradient(135deg,rgba(8,20,34,.96),rgba(5,10,18,.98));border-color:rgba(98,201,255,.18);box-shadow:0 28px 90px rgba(0,0,0,.30);}
.course-direct-page .course-hero h1{font-size:clamp(48px,5vw,84px);}
.course-day-context{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.36fr);gap:24px;align-items:center;margin-top:22px;padding:26px;border-radius:30px;background:linear-gradient(135deg,rgba(7,18,32,.94),rgba(4,10,18,.94));border:1px solid rgba(98,201,255,.18);}
.course-day-context h2{margin:6px 0;color:#fff;font-size:clamp(38px,4vw,64px);letter-spacing:-.055em;}
.course-day-context p{margin:0;color:#aeb8c6;font-weight:760;font-size:17px;line-height:1.55;}
.course-day-picker{display:grid;gap:12px;}
.course-day-picker span{font-size:13px;font-weight:950;letter-spacing:.16em;text-transform:uppercase;color:#77c7ff;}
.course-day-picker select{min-height:68px;border-radius:22px;border:1px solid rgba(98,201,255,.25);background:#02070d;color:#fff;padding:0 22px;font-weight:950;font-size:20px;}
.course-direct-page .lesson-view{margin-top:24px;padding:28px;border-radius:32px;background:linear-gradient(180deg,rgba(8,19,33,.96),rgba(5,10,18,.98));border:1px solid rgba(98,201,255,.18);}
.course-direct-page .lesson-top h2{font-size:clamp(32px,3.4vw,58px);letter-spacing:-.045em;line-height:1.04;}
.course-direct-page .course-study-grid{display:grid!important;grid-template-columns:1fr!important;gap:28px!important;margin-top:26px;}
.full-course-reader,.full-mini-test-panel{width:100%;border-radius:28px!important;background:rgba(2,7,14,.82)!important;border:1px solid rgba(255,255,255,.10)!important;}
.course-direct-page .pdf-head{padding:22px 26px;}
.course-direct-page .course-note-page{min-height:620px;margin:26px;border-radius:24px;padding:52px;background:#f7f8fb;color:#10141a;box-shadow:inset 0 0 0 1px rgba(0,0,0,.06);}
.course-direct-page .course-note-page h4{font-size:clamp(32px,3vw,54px);letter-spacing:-.04em;}
.course-direct-page .course-note-page p{font-size:clamp(20px,1.35vw,26px);line-height:1.9;max-width:1050px;}
.course-direct-page .lesson-actions{margin:0 26px 26px;}
.full-mini-test-panel{display:grid!important;gap:18px;padding:30px!important;}
.full-mini-test-panel .test-panel-header h3{font-size:clamp(34px,3.5vw,60px);letter-spacing:-.05em;margin:8px 0 0;}
.full-mini-test-panel p{max-width:980px;font-size:18px!important;font-weight:760;}
@media(max-width:900px){.course-day-context{grid-template-columns:1fr}.course-direct-page .course-note-page{min-height:460px;padding:32px;margin:18px}.course-direct-page .course-shell{width:min(100% - 24px,1580px)}}


/* v69 strict earned-day visibility */
.course-phase-summary{display:grid;gap:7px;margin:0 0 16px;padding:15px;border:1px solid rgba(98,201,255,.20);border-radius:16px;background:rgba(2,183,254,.055)}
.course-phase-summary strong{color:#fff;font-size:.92rem}.course-phase-summary span{color:var(--muted);font-size:.78rem;line-height:1.5}
.module-future-notice{display:grid;gap:6px;margin-top:4px;padding:14px;border:1px dashed rgba(148,163,184,.22);border-radius:15px;background:rgba(255,255,255,.025)}
.module-future-notice strong{color:#dbe8f6;font-size:.82rem}.module-future-notice span{color:var(--muted);font-size:.72rem;line-height:1.5}

/* v102 protected canvas course reader */
.full-course-reader{padding:0!important;overflow:hidden;}
.full-course-reader .pdf-head{padding:22px 22px 0;}
.course-alignment-notice{margin:18px 22px 0;padding:15px 17px;border-radius:16px;border:1px solid rgba(255,194,53,.34);background:rgba(255,174,0,.08);color:#ffe19b;font-weight:780;line-height:1.48;}
.course-alignment-notice.is-safe{border-color:rgba(83,222,147,.28);background:rgba(31,190,109,.07);color:#baf7d4;}
.course-alignment-notice.is-review{border-color:rgba(255,102,102,.34);background:rgba(210,44,44,.10);color:#ffc2c2;}
.course-pdf-stage{position:relative;margin:20px 22px;border:1px solid rgba(104,181,255,.20);border-radius:22px;overflow:hidden;background:#070c14;min-height:520px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.025);user-select:none;-webkit-user-select:none;}
.course-reader-toolbar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:13px 16px;border-bottom:1px solid rgba(104,181,255,.15);background:rgba(5,12,23,.96);backdrop-filter:blur(12px);}
.course-reader-toolbar span{display:grid;gap:3px;}
.course-reader-toolbar b{color:#eef6ff;font-size:13px;letter-spacing:.02em;}
.course-reader-toolbar small{color:#8198b5;font-size:10px;font-weight:750;}
.course-reader-toolbar>strong{color:#7ec9ff;font-size:12px;white-space:nowrap;}
.course-page-stack{display:grid;gap:22px;padding:22px;background:radial-gradient(circle at 50% 0,rgba(39,100,175,.08),transparent 40%),#080d15;}
.course-page-stack:empty{display:none;}
.course-rendered-page{position:relative;width:min(100%,1040px);margin:0 auto;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 18px 48px rgba(0,0,0,.34);}
.course-rendered-page canvas{display:block;width:100%;height:auto;background:#fff;pointer-events:none;}
.course-rendered-page-label{position:absolute;right:10px;bottom:9px;padding:5px 8px;border-radius:999px;background:rgba(2,9,18,.72);color:rgba(255,255,255,.78);font-size:9px;font-weight:850;letter-spacing:.04em;pointer-events:none;}
.course-page-error{display:grid;place-content:center;min-height:260px;padding:28px;text-align:center;color:#ffc2c2;background:#13080b;font-weight:800;}
.course-pdf-loading,.course-pdf-unavailable{position:absolute;inset:54px 0 0;z-index:4;display:grid;place-content:center;text-align:center;gap:8px;padding:28px;background:linear-gradient(145deg,#061427,#020812);color:#fff;}
.course-pdf-loading strong,.course-pdf-unavailable strong{font-size:24px;}
.course-pdf-loading span,.course-pdf-unavailable span{color:#9eb2cc;font-weight:700;}
.course-pdf-loading[hidden],.course-pdf-unavailable[hidden]{display:none!important;}
.course-lesson-summary{margin:0 22px 18px;padding:18px 20px;border-radius:18px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.025);}
.course-lesson-summary h4{margin:0 0 8px;color:#fff;font-size:18px;}
.course-lesson-summary p{margin:0;color:#aebed0;font-weight:720;line-height:1.55;}
.status-pill.review{border-color:rgba(255,92,92,.38)!important;background:rgba(255,61,61,.10)!important;color:#ffb6b6!important;}
.module-item.review-required{border-color:rgba(255,92,92,.32)!important;background:rgba(255,61,61,.055)!important;}
.module-item.review-required span{color:#ffb8b8!important;}
@media(max-width:900px){
  .course-pdf-stage{min-height:480px;margin:16px;}
  .course-page-stack{padding:14px;gap:16px;}
  .course-alignment-notice{margin:16px 16px 0;}
  .course-lesson-summary{margin:0 16px 16px;}
}
@media(max-width:560px){
  .course-pdf-stage{min-height:420px;border-radius:16px;}
  .course-reader-toolbar{align-items:flex-start;padding:11px 12px;}
  .course-reader-toolbar small{max-width:220px;}
  .course-page-stack{padding:8px;gap:12px;}
  .course-rendered-page{border-radius:8px;}
}

/* v120 calmer lesson hierarchy: remove heavy reader divider lines */
.course-direct-page .lesson-view,
.full-course-reader,
.full-course-reader .pdf-head,
.course-pdf-stage,
.course-reader-toolbar{
  border:0!important;
  box-shadow:none!important;
}
.full-course-reader{
  border-radius:20px!important;
  background:linear-gradient(180deg,rgba(6,13,23,.88),rgba(4,9,16,.96))!important;
}
.full-course-reader .pdf-head{padding:20px 22px 10px;}
.course-alignment-notice{
  margin:10px 22px 4px;
  padding:12px 14px;
  border:0!important;
  border-radius:12px;
  background:rgba(31,190,109,.055);
  font-size:var(--xn-type-normal);
  font-weight:700;
  line-height:1.5;
}
.course-alignment-notice.is-safe,
.course-alignment-notice.is-review{border:0!important;}
.course-pdf-stage{
  margin:12px 22px 22px;
  border-radius:18px;
  background:#080d15;
}
.course-reader-toolbar{
  padding:14px 18px;
  background:rgba(7,13,22,.94);
}
.course-reader-toolbar span{gap:4px;}
.course-reader-toolbar b{font-size:var(--xn-type-normal);font-weight:750;letter-spacing:0;}
.course-reader-toolbar small{font-weight:600;line-height:1.45;}
.course-page-stack{padding-top:14px;}
@media(max-width:900px){
  .course-alignment-notice{margin:8px 16px 2px;}
  .course-pdf-stage{margin:10px 16px 16px;}
}

/* v126 every-third-day course assessments */
.full-mini-test-panel .test-panel-header h3{
  font-size:clamp(24px,2.2vw,34px);
  letter-spacing:-.025em;
}
.full-mini-test-panel>p{margin:0;font-size:var(--xn-type-normal)!important;font-weight:650;}
.course-test-meta{display:flex;flex-wrap:wrap;gap:8px;}
.course-test-meta span{padding:8px 11px;border-radius:999px;background:rgba(126,201,255,.08);color:#b9d8ef;font-size:12px;font-weight:800;}
.course-test-questions{display:grid;gap:14px;max-height:min(68vh,760px);overflow-y:auto;overscroll-behavior:contain;padding:4px 10px 4px 0;scrollbar-gutter:stable;}
.course-test-question{min-width:0;margin:0;padding:18px;border:1px solid rgba(255,255,255,.09);border-radius:17px;background:rgba(255,255,255,.025);}
.course-test-question legend{display:flex;align-items:flex-start;gap:11px;padding:0 5px;color:#f2f7fb;font-size:16px;font-weight:800;line-height:1.5;}
.course-test-question legend>span{display:grid;flex:0 0 26px;width:26px;height:26px;place-items:center;border-radius:8px;background:rgba(2,183,254,.13);color:#7ec9ff;font-size:12px;}
.course-test-options{display:grid;gap:8px;margin-top:14px;}
.course-test-options label{display:flex;align-items:flex-start;gap:10px;padding:12px 13px;border:1px solid rgba(255,255,255,.07);border-radius:13px;background:#070c13;color:#bfccda;font-size:15px;font-weight:650;line-height:1.45;cursor:pointer;}
.course-test-options label:hover{border-color:rgba(2,183,254,.30);background:rgba(2,183,254,.055);color:#e8f4fd;}
.course-test-options input{flex:0 0 auto;margin-top:3px;accent-color:#02b7fe;}
.course-test-result{display:grid;gap:14px;padding:18px;border-radius:17px;border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.025);}
.course-test-result.passed{border-color:rgba(83,222,147,.30);background:rgba(31,190,109,.07);}
.course-test-result.not-passed{border-color:rgba(255,194,53,.30);background:rgba(255,174,0,.06);}
.course-test-result>strong{font-size:20px;color:#fff;}
.course-test-result>div{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;}
.course-test-result span{display:grid;gap:3px;padding:11px;border-radius:12px;background:rgba(0,0,0,.22);color:#9eafc1;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;}
.course-test-result b{color:#fff;font-size:18px;letter-spacing:0;text-transform:none;}
@media(max-width:640px){
  .full-mini-test-panel{padding:20px!important;}
  .course-test-questions{max-height:72vh;padding-right:4px;}
  .course-test-question{padding:14px;}
  .course-test-result>div{grid-template-columns:repeat(2,minmax(0,1fr));}
}