:root{--bg:#101313;--surface:#191d1d;--surface2:#202525;--border:#303737;--muted:#919d9b;--text:#f0f4f0;--lime:#c4ff69;--green:#a9e85e;--dark:#121716;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--lime);outline-offset:2px}a{color:inherit}.hidden{display:none!important}.lime{color:var(--lime)}.green{color:var(--green)}.eyebrow{font-size:11px;letter-spacing:.2em;font-weight:800}.login-wrap{min-height:100dvh;display:grid;place-items:center;padding:25px;background:radial-gradient(ellipse at 70% 8%,#243129 0,transparent 42%),#101313;position:relative;overflow:hidden}.login-glow{position:absolute;width:550px;height:550px;border:1px solid #ffffff08;border-radius:50%;right:-250px;top:-280px;box-shadow:0 0 0 90px #ffffff03,0 0 0 180px #ffffff02}.login-card{z-index:1;width:min(100%,440px);padding:42px;border-radius:24px;background:#1a1f1e;box-shadow:0 24px 90px #0006;border:1px solid #303936}.login-card .logo{margin-bottom:30px}.login-card h1{font-size:40px;margin:13px 0 12px;letter-spacing:-.06em}.login-card p{color:var(--muted);line-height:1.65;margin:0 0 24px}.field-label{display:block;font-size:13px;font-weight:700;margin-bottom:9px}.login-card input{margin-bottom:14px}.login-card .error{margin:12px 0 0}.private-tag{text-align:center;font-size:11px;color:#82908b;border-top:1px solid var(--border);padding-top:22px;margin-top:28px}.logo{background:var(--lime);color:#142018;width:42px;height:42px;display:grid;place-items:center;border-radius:13px;flex-shrink:0}.logo-lg{width:54px;height:54px;border-radius:17px}.brand-glyph{font-size:31px;line-height:1}.app-shell{display:flex;min-height:100vh}.sidebar{width:250px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;padding:32px 18px 23px;border-right:1px solid var(--border);background:#131717}.brand{display:flex;align-items:center;gap:11px;margin:0 9px 60px}.brand strong{font-size:20px;letter-spacing:-.05em;display:block}.brand small{font-size:9px;letter-spacing:.14em;color:#81908a}.nav-label{font-size:10px;letter-spacing:.19em;color:#697873;font-weight:800;margin:0 15px 14px}.nav-list{display:grid;gap:7px}.nav-btn{display:flex;gap:13px;align-items:center;padding:14px 16px;color:#9eaba6;border:1px solid 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var(--border)}.crumb{font-size:10px;letter-spacing:.14em;font-weight:800;color:#89968f}.crumb span{padding:0 11px;color:#5d6b64}.crumb b{color:var(--text)}.top-actions{display:flex;align-items:center;gap:10px;color:#a7b4a9;font-size:11px}.live-dot{background:#a7e86d;width:7px;height:7px;border-radius:50%;box-shadow:0 0 0 4px #a7e86d17}.avatar{margin-left:15px;background:#2f3c30;width:33px;height:33px;display:grid;place-items:center;border-radius:50%;color:var(--lime);font-weight:800}main{max-width:1500px;margin:auto;padding:52px 6% 90px}.page h1{font-size:clamp(32px,3.3vw,52px);letter-spacing:-.06em;line-height:1.1;margin:12px 0}.intro{color:var(--muted);margin:0;line-height:1.6;font-size:14px}.welcome-row,.section-title{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:33px}.date-pill,.section-badge{border:1px solid #3b4838;background:#1b261c;color:#c0efa6;padding:10px 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#81bc5245;width:330px;height:330px;right:-80px;top:-100px}.orb-two{width:440px;height:440px;right:-135px;top:-150px}.metric-card,.panel{background:var(--surface);border:1px solid var(--border);border-radius:20px}.metric-card{padding:27px;display:flex;flex-direction:column;align-items:flex-start}.metric-icon{width:43px;height:43px;background:#293527;color:#b5f176;display:grid;place-items:center;font-size:24px;border-radius:13px;margin-bottom:auto}.metric-card small{font-size:11px;letter-spacing:.13em;font-weight:800;color:#a4b0a7;margin-top:25px}.metric-card strong{font-size:53px;letter-spacing:-.07em;line-height:1.2;margin:3px 0}.metric-card span{font-size:12px;color:var(--muted)}.content-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:20px}.panel{padding:26px;min-width:0}.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;gap:12px}.panel h3{margin:0;font-size:17px;letter-spacing:-.035em}.panel-head 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.form-group{max-width:360px}.practice-question{font-size:clamp(21px,3vw,30px);font-weight:750;letter-spacing:-.04em;line-height:1.4;margin:32px 0}.choice-stack{display:grid;gap:10px;margin-bottom:18px}.choice{padding:15px;text-align:left;background:#222a26;color:var(--text);border:1px solid #3c4a40;border-radius:12px}.choice.correct{background:#284829;border-color:#7bbe60}.choice.wrong{background:#402827;border-color:#b86a5a}.practice-feedback{font-size:13px;color:#c1ed9b;min-height:24px;margin-bottom:15px;line-height:1.6}.cards-grid,.planner-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px}.form-stack{display:grid}.form-stack label{margin-top:18px}.form-stack label:first-child{margin-top:20px}.form-stack button{margin-top:20px}.flip-card{width:100%;min-height:225px;border-radius:17px;border:1px solid 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#0006;font-size:12px;font-weight:800}.mobile-nav{display:none}@media(max-width:1120px){.overview-grid{grid-template-columns:1.5fr 1fr 1fr}.metric-card{padding:20px}.hero-card{padding:23px}.content-grid{grid-template-columns:1fr}.hero-symbol{font-size:220px;bottom:-70px}}@media(max-width:850px){.sidebar{display:none}.workspace{margin:0}.topbar{height:65px;padding:0 22px}.top-actions span:not(.live-dot){display:none}main{padding:33px 20px 120px}.mobile-nav{position:fixed;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid #374239;background:#151a18;padding:11px 4px calc(8px + env(safe-area-inset-bottom));z-index:20;box-shadow:0 -15px 40px #0004}.mobile-nav button{border:0;background:none;color:#8e9a92;display:flex;align-items:center;flex-direction:column;gap:4px;font-size:10px}.mobile-nav button span{font-size:22px;line-height:1.2}.mobile-nav button.active{color:var(--lime)}.overview-grid{grid-template-columns:1fr 1fr}.overview-grid 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/* StudyNest book nest mark */
.logo { background:transparent; overflow:hidden; }
.logo img { display:block; width:100%; height:100%; object-fit:cover; }