*{box-sizing:border-box}body{margin:0;background:#f5f7f8;color:#142b35;font:400 16px/1.6 'DM Sans',sans-serif}.m2-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.m2-sidebar{background:#07111f;color:#fff;padding:26px 20px;display:flex;flex-direction:column;gap:28px;position:sticky;top:0;height:100vh}.m2-brand{display:flex;gap:12px;align-items:center;color:#fff;text-decoration:none}.m2-brand>span{width:42px;height:42px;border-radius:13px;background:#f3c96b;color:#07111f;display:grid;place-items:center;font:700 22px 'Newsreader'}.m2-brand strong,.m2-brand small{display:block}.m2-brand small{color:#96a6af}.module-switch small{color:#80929e;font-size:11px;letter-spacing:.12em}.module-switch a{display:flex;gap:10px;color:#aebbc2;text-decoration:none;padding:12px;margin-top:7px;border-radius:11px}.module-switch a.active{background:#182a3b;color:#f3c96b}.module-switch a span{color:inherit}.m2-progress{margin-top:auto}.m2-progress strong,.m2-progress span{display:block}.m2-progress strong{font:600 28px 'Newsreader';color:#f3c96b}.m2-progress span{font-size:13px;color:#aebbc2}.m2-progress>div{height:6px;background:#27394a;border-radius:8px;margin-top:10px;overflow:hidden}.m2-progress i{display:block;height:100%;background:#f3c96b}.m2-sidebar .quiet{color:#9aabb5;border:0;background:none;text-align:left}.m2-top{height:74px;background:#fff;border-bottom:1px solid #dfe5e7;display:flex;align-items:center;justify-content:space-between;padding:0 30px}.m2-top>div span,.m2-top>div strong{display:block}.m2-top>div span{font-size:11px;color:#8a6b29;letter-spacing:.12em}.m2-top a{color:#52666f;text-decoration:none}.m2-top button{display:none}.m2-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;padding:28px;max-width:1500px;margin:auto}.m2-stage,.m2-rail{background:#fff;border:1px solid #dfe5e7;border-radius:20px}.m2-stage{overflow:hidden}.session-head{padding:30px;display:flex;justify-content:space-between;gap:20px}.session-head h1{font:600 34px/1.15 'Newsreader';margin:7px 0}.session-head p{margin:0;color:#63747c}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.12em;color:#8a6b29}.identity-banner{margin:0 30px 24px;padding:20px 22px;border-radius:15px;background:linear-gradient(135deg,#07111f,#17364a);color:#fff}.identity-banner span,.identity-banner strong{display:block}.identity-banner span{font-size:11px;letter-spacing:.13em;color:#f3c96b}.identity-banner strong{font:600 22px/1.35 'Newsreader';margin-top:5px}.m2-tabs{display:flex;gap:6px;padding:0 30px;border-bottom:1px solid #dfe5e7;overflow:auto}.m2-tabs button{padding:13px 16px;border:0;background:none;color:#60727b;font-weight:700;border-bottom:3px solid transparent}.m2-tabs button.active{color:#142b35;border-color:#f3c96b}.m2-panel{display:none;padding:28px 30px}.m2-panel.active{display:block}.anchor{padding:20px;border-radius:14px;background:#fff9e9;border:1px solid #f0dfae}.anchor span{font-size:12px;font-weight:700;color:#8a6b29}.anchor p{margin:5px 0 0;font:500 18px/1.55 'Newsreader'}.memory{padding:24px 0}.memory small{color:#167865;font-weight:700}.memory blockquote{margin:6px 0;font:600 25px/1.35 'Newsreader'}.reader-section{padding:24px 0;border-top:1px solid #e4e9eb}.reader-section h2{font:600 25px/1.3 'Newsreader';margin:0 0 14px}.reader-section p{font-size:17px;line-height:1.75}.reader-section .cue{font-size:12px;color:#819098;text-transform:uppercase}.reader-section .emphasis{font:600 20px/1.5 'Newsreader';color:#7a5b18}.m2-rail{padding:24px;height:max-content;position:sticky;top:98px}.session-link{width:100%;display:flex;gap:12px;text-align:left;padding:13px 9px;border:0;border-bottom:1px solid #edf0f1;background:none}.session-link.active{background:#fff9e9}.session-link>span{width:29px;height:29px;border-radius:9px;background:#eef2f3;display:grid;place-items:center;font-weight:700}.session-link.done>span{background:#dff7f0;color:#167865}.session-link strong,.session-link small{display:block}.session-link strong{font-size:14px}.session-link small{color:#7a8990}.m2-card{border:1px solid #dfe5e7;border-radius:15px;padding:18px;margin-bottom:17px}.m2-card h3{font:600 20px/1.4 'Newsreader';margin:0 0 7px}.m2-card p{margin:0 0 12px}.m2-help{background:#f7fafb;border-radius:10px;padding:12px 14px;margin:10px 0}.m2-help summary{cursor:pointer;font-weight:700;color:#167865}.m2-help blockquote{margin:10px 0 0;border-left:3px solid #39a78d;padding-left:12px}.m2-card textarea{width:100%;min-height:130px;padding:13px;border:1px solid #cad4d8;border-radius:10px;font:400 16px/1.6 'DM Sans'}.option{display:block;border:1px solid #d7dfe2;border-radius:10px;padding:11px 13px;margin:9px 0}.option.selected{border-color:#7462bd;background:#f7f5ff}.option.correct{border-color:#62b79f;background:#f0fcf8}.option.wrong{border-color:#d98881;background:#fff4f3}.option-explain{display:block;margin:8px 0 0 23px;font-size:14px;color:#52666f}.quiz-result{font-weight:700;margin-top:10px}.m2-footer{padding:0 30px 30px;display:flex;justify-content:space-between}.m2-footer button,.m2-card button{padding:11px 15px;border-radius:10px;border:1px solid #ccd6da;background:#fff;font-weight:700}.m2-footer .primary,.m2-card .primary{background:#142b35;color:#fff;border-color:#142b35}.toast{position:fixed;right:24px;bottom:24px;background:#07111f;color:#fff;padding:12px 16px;border-radius:10px;opacity:0;pointer-events:none}.toast.show{opacity:1}@media(max-width:1050px){.m2-layout{grid-template-columns:1fr}.m2-rail{position:static}}@media(max-width:760px){.m2-shell{display:block}.m2-sidebar{display:none;position:fixed;z-index:20;width:270px}.m2-sidebar.open{display:flex}.m2-top button{display:block}.m2-layout{padding:12px}.session-head{display:block;padding:22px}.identity-banner{margin:0 20px 20px}.m2-tabs{padding:0 16px}.m2-panel{padding:22px 18px}.m2-footer{padding:0 18px 22px}.session-head h1{font-size:29px}}
.m2-language{display:flex;gap:3px;padding:3px;border:1px solid rgba(255,255,255,.15);border-radius:999px;overflow-x:auto;max-width:520px}.m2-language button{border:0;background:transparent;color:rgba(255,255,255,.72);padding:7px 10px;border-radius:999px;white-space:nowrap;font:600 12px/1 "DM Sans",sans-serif;cursor:pointer}.m2-language button.active{background:#f4c95d;color:#07111f}
@media(max-width:1100px){.m2-top{flex-wrap:wrap}.m2-language{order:3;width:100%;max-width:100%}}

/* Modules 2–5 intentionally inherit Module One's learning-journey design. */
.m2-shell{grid-template-columns:260px minmax(0,1fr)}
.m2-sidebar{gap:20px}
.m2-brand>span.brand-mark{width:42px;height:42px;border-radius:13px;background:#f3c96b;color:#07111f}
.m2-brand small{display:block;color:#96a6af}
.module-tools{display:grid;gap:5px}
.module-tools .nav-link{width:100%;display:flex;align-items:center;gap:12px;border:0;background:transparent;color:#aebbc2;padding:11px 12px;border-radius:11px;text-align:left;font:600 14px 'DM Sans',sans-serif;cursor:pointer}
.module-tools .nav-link:hover,.module-tools .nav-link.active{background:#182a3b;color:#fff}
.sidebar-bottom{margin-top:auto;display:grid;gap:14px}
.sidebar-bottom .m2-progress{margin-top:0}
.m2-top{min-height:74px;height:auto;gap:18px}
.m2-top .menu{display:none}
.m2-top .language-option,.m2-top .profile{display:block}
.m2-top .top-actions{display:flex;align-items:center;gap:12px;min-width:0}
.m2-language{border-color:#d9e0e3;background:#f5f7f8;max-width:600px}
.m2-language button{display:block;color:#60727b}
.m2-language button.active{background:#07111f;color:#f3c96b}
.m2-language button:disabled:not(.active){opacity:.42;cursor:not-allowed}
.module-back{white-space:nowrap;padding:8px 10px;border-radius:9px;background:#f5f7f8;font-size:13px;font-weight:700}
.m2-layout{grid-template-columns:minmax(0,1fr) 350px;gap:28px;padding:30px 34px 50px;max-width:1500px;align-items:start}
.m2-stage{background:transparent;border:0;border-radius:0;overflow:visible;box-shadow:none}
.m2-stage .session-head{padding:0}
.session-head .lesson-time{display:flex;align-items:center;gap:7px;white-space:nowrap;color:#63747c}
.identity-banner{position:relative;margin:0;padding:0;overflow:hidden}
.identity-banner .video-copy{z-index:2}
.identity-banner blockquote{margin:8px 0 0;color:#fff;font:600 clamp(25px,3vw,38px)/1.22 'Newsreader',serif}
.identity-banner .video-kicker{color:#f3c96b;font-size:11px;font-weight:700;letter-spacing:.14em}
.m2-tabs{padding:0}
.m2-panel{padding:29px 31px}
.memory.checkpoint{margin:22px 0;padding:20px;border:1px solid #dce8e5;border-radius:15px;background:#f3fbf8}
.memory.checkpoint>div{display:flex;gap:14px;align-items:flex-start}
.memory.checkpoint blockquote{font-size:22px}
.m2-rail{border:0;background:transparent;padding:0;position:sticky;top:98px}
.m2-rail>.eyebrow{display:block;margin:20px 4px 8px}
.m2-rail .progress-card{background:#fff;border:1px solid #dfe5e7;border-radius:18px;padding:18px}
.m2-rail .progress-ring{flex:0 0 auto}
.m2-rail .module-list{background:#fff;border:1px solid #dfe5e7;border-radius:18px;padding:8px 14px}
.reader-section:first-child{border-top:0}
.m2-card{background:#fff}
@media(max-width:1200px){.m2-top .module-back{display:none}.m2-language{max-width:470px}}
@media(max-width:1050px){.m2-layout{grid-template-columns:1fr}.m2-rail{position:static}.m2-top{padding:12px 20px}.m2-top .top-actions{width:100%;justify-content:flex-end}.m2-language{max-width:100%;overflow-x:auto}}
@media(max-width:760px){.m2-top .menu{display:block}.m2-top .top-actions{justify-content:flex-start}.m2-top .profile{margin-left:auto}.m2-layout{padding:22px 16px 45px}.identity-banner{margin:0}.identity-banner blockquote{font-size:27px}.m2-panel{padding:23px 19px}.m2-rail{padding:0 6px 18px}.module-tools{display:grid}}