:root{--navy-950: #0A0A0A;--navy-900: #171717;--navy-800: #1f1f1f;--indigo-700: #8a6500;--indigo-600: #F5A623;--indigo-500: #FFC93C;--indigo-100: #fff4d6;--indigo-50: #fffaf0;--violet: #F5A623;--electric: #666666;--emerald: #F5A623;--emerald-700: #8a6500;--teal: #F5A623;--amber: #F5A623;--amber-700: #8a6500;--red: #ef4444;--bg: #f6f6f6;--surface: #ffffff;--surface-2: #f1f1f1;--ink: #0A0A0A;--ink-2: #333333;--muted: #666666;--line: #e8e8e8;--line-2: #d8d8d8;--r-sm: 8px;--r: 12px;--r-lg: 18px;--r-xl: 26px;--sh-sm: 0 1px 2px rgba(10, 10, 10, .06);--sh: 0 4px 18px -6px rgba(10, 10, 10, .12);--sh-lg: 0 24px 60px -24px rgba(10, 10, 10, .25);--font: "Plus Jakarta Sans", "Noto Sans Tamil", system-ui, -apple-system, "Segoe UI", sans-serif;--ta: "Noto Sans Tamil", "Plus Jakarta Sans", sans-serif}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5{margin:0 0 .4em;line-height:1.2;letter-spacing:-.02em;font-weight:750}h1{font-size:clamp(1.5rem,1.2rem + 1.2vw,2rem)}h2{font-size:clamp(1.4rem,1.1rem + 1.4vw,2.2rem)}h3{font-size:1.15rem}h4{font-size:1.02rem}p{margin:0 0 1em}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer;background:none;border:0;padding:0}button:disabled{cursor:not-allowed}input,select,textarea{font:inherit;color:var(--ink)}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.82em;background:var(--surface-2);padding:2px 6px;border-radius:6px}:focus-visible{outline:2px solid var(--indigo-500);outline-offset:2px;border-radius:6px}hr{border:0;border-top:1px solid var(--line);margin:8px 0;width:100%}.ta,.ta-accent{font-family:var(--ta)}.muted{color:var(--muted)}.small{font-size:.84rem}.block{display:block}.cap{text-transform:capitalize}.center{text-align:center}.grow{flex:1;min-width:0}.rel{position:relative}.w-full{width:100%}.row{display:flex;align-items:center}.col{display:flex;flex-direction:column}.wrap{flex-wrap:wrap}.between{justify-content:space-between}.end{justify-content:flex-end}.end-items{align-items:flex-end}.gap{gap:14px}.gap-sm{gap:8px}.gap-xs{gap:4px}.mt{margin-top:16px}.mt-sm{margin-top:8px}.mt-lg{margin-top:32px}.mt-auto{margin-top:auto}.pad{padding:20px}.pad-sm{padding:12px 14px}.pad-x{padding:0 20px}.ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.link{color:var(--indigo-600);font-weight:600}.link:hover{text-decoration:underline}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}.container.narrow{max-width:920px}.page-center{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;flex-direction:column;padding:24px}.only-mobile,.icon-btn.only-mobile{display:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 18px;border-radius:11px;font-weight:650;font-size:.92rem;white-space:nowrap;transition:transform .15s,box-shadow .2s,background .2s,border-color .2s,opacity .2s;border:1px solid transparent}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.55}.btn-sm{height:34px;padding:0 12px;font-size:.84rem;border-radius:9px}.btn-lg{height:52px;padding:0 24px;font-size:1rem;border-radius:14px}.btn-primary{background:linear-gradient(180deg,var(--indigo-500),var(--indigo-600));color:#fff;box-shadow:0 6px 18px -8px #4f46e5b3,inset 0 1px #ffffff2e}.btn-primary:hover:not(:disabled){box-shadow:0 10px 26px -8px #4f46e5cc,inset 0 1px #ffffff2e}.btn-ghost{background:var(--surface);border-color:var(--line-2);color:var(--ink)}.btn-ghost:hover:not(:disabled){border-color:var(--indigo-500);color:var(--indigo-700)}.btn-gold{background:linear-gradient(180deg,#fbbf24,#f59e0b);color:#2a1700;box-shadow:0 6px 18px -8px #f59e0bcc}.btn-success{background:linear-gradient(180deg,#34d399,#10b981);color:#03261a}.btn-danger{background:var(--red);color:#fff}.btn-danger-ghost{background:#fff;color:#b91c1c;border-color:#fecaca}.btn-danger-ghost:hover{background:#fef2f2}.btn-glass{background:#ffffff14;color:#fff;border-color:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-glass:hover{background:#ffffff24}.btn-white{background:#fff;color:var(--navy-800);box-shadow:0 8px 24px -10px #0006}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;color:var(--ink-2);transition:background 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8px;border-radius:6px;background:repeating-linear-gradient(45deg,#fff7ed,#fff7ed 6px,#ffedd5 6px,#ffedd5 12px);color:#9a3412;border:1px dashed #fdba74;text-transform:uppercase;letter-spacing:.04em}.eyebrow{display:inline-block;font-size:.74rem;font-weight:750;letter-spacing:.1em;text-transform:uppercase;color:var(--indigo-600)}.eyebrow.light{color:#c7d2fe}.chip{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;padding:6px 10px;border-radius:999px;background:var(--indigo-50);color:var(--indigo-700);font-weight:600}.chip.static{background:var(--surface);border:1px solid 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button:hover{color:var(--indigo-700);background:var(--indigo-50)}.pnav-right{display:flex;align-items:center;gap:10px}.pnav-login{font-weight:650;font-size:.9rem;color:#fff;padding:8px 10px}.pnav.scrolled .pnav-login{color:var(--ink)}.lang-btn{display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:650;padding:7px 10px;border-radius:9px;border:1px solid rgba(255,255,255,.22);color:#fff;font-family:var(--ta)}.pnav.scrolled .lang-btn,.drawer .lang-btn{border-color:var(--line-2);color:var(--ink-2)}.pnav-burger{display:none;color:#fff;margin-left:auto}.pnav.scrolled .pnav-burger{color:var(--ink)}.drawer{position:absolute;top:70px;left:12px;right:12px;background:#fff;border-radius:20px;box-shadow:var(--sh-lg);padding:12px;display:flex;flex-direction:column;border:1px solid var(--line)}.drawer>button{text-align:left;padding:13px 14px;border-radius:12px;font-weight:650}.drawer>button:hover{background:var(--surface-2)}.drawer-cta{display:grid;gap:8px;padding:10px 4px 4px;border-top:1px solid var(--line);margin-top:6px}.drawer-cta .lang-btn{justify-self:start}.hero{position:relative;background:radial-gradient(1200px 600px at 70% -10%,rgba(245,166,35,.28) 0%,transparent 60%),linear-gradient(180deg,var(--navy-950),var(--navy-900) 60%,#111111);color:#fff;padding:65px 0 0;overflow:hidden}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:hidden}.glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55}.glow.g1{width:520px;height:520px;background:#f5a623;top:-180px;right:-80px;animation:drift 14s ease-in-out infinite alternate}.glow.g2{width:420px;height:420px;background:#ffc93c;bottom:-220px;left:-120px;opacity:.35;animation:drift 18s ease-in-out infinite alternate-reverse}@keyframes drift{to{transform:translate(-60px,40px) scale(1.1)}}.grid-bg{position:absolute;top:0;right:0;bottom:0;left:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 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span:nth-child(3){background:#86efac}.mock-bar em{font-style:normal;font-size:.72rem;color:var(--muted);margin-left:10px}.mock-body{display:flex}.mock-side{display:flex;flex-direction:column;gap:10px;padding:16px 10px;border-right:1px solid var(--line)}.mock-side span{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;color:var(--muted)}.mock-side span.on{background:var(--indigo-50);color:var(--indigo-600)}.mock-main{flex:1;padding:18px;display:flex;flex-direction:column;gap:14px}.mock-hello{font-family:var(--ta);font-weight:700;margin:0;font-size:1.05rem}.mock-video{position:relative;height:150px;border-radius:14px;background:linear-gradient(135deg,#0a0a0a,#f5a623 55%,#ffc93c);overflow:hidden}.mock-play{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:#fff}.mock-vbar{position:absolute;left:12px;right:12px;bottom:30px;height:4px;border-radius:4px;background:#ffffff4d}.mock-vbar span{display:block;height:100%;border-radius:inherit;background:#fff}.mock-vtitle{position:absolute;left:12px;bottom:9px;font-size:.74rem;color:#fff;font-weight:600}.mock-rows{display:flex;flex-direction:column;gap:10px}.mock-row{display:grid;grid-template-columns:78px 1fr 36px;align-items:center;gap:10px;font-size:.8rem;font-weight:600}.mbar{height:7px;background:var(--surface-2);border-radius:7px;overflow:hidden}.mbar i{display:block;height:100%;border-radius:inherit}.float{position:absolute;background:#fff;color:var(--ink);border-radius:16px;box-shadow:0 20px 50px -20px #00000080}.f-score{left:-8px;bottom:30px;display:flex;align-items:center;gap:10px;padding:12px 16px 12px 12px}.f-score b{display:block;font-size:1.2rem}.f-score span{font-size:.74rem;color:var(--muted)}.f-mcq{right:-16px;top:40%;padding:14px;display:flex;flex-direction:column;gap:6px;width:200px;font-size:.84rem}.opt{display:flex;align-items:center;gap:6px;padding:7px 10px;border-radius:9px;font-size:.78rem;font-weight:650}.opt.ok{background:#d1fae5;color:#065f46}.f-sub{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;color:#fff}.f-sub.bio{background:linear-gradient(135deg,#f5a623,#0a0a0a);top:-14px;left:24%}.f-sub.chem{background:linear-gradient(135deg,#ffc93c,#f5a623);top:18%;left:-20px}.f-sub.phy{background:linear-gradient(135deg,#666,#0a0a0a);bottom:-12px;right:18%}.f-pdf{top:-8px;right:4%;display:flex;align-items:center;gap:8px;padding:9px 12px;font-size:.78rem;font-weight:650;color:#b91c1c}.section{padding:96px 0;position:relative}.section.alt{background:var(--bg)}.section-head{max-width:680px;margin-bottom:44px}.section-head.center{margin-left:auto;margin-right:auto;text-align:center}.section-head h2{margin:8px 0 10px}.section-head p{color:var(--muted);font-size:1.05rem;margin:0}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.subject-card{position:relative;text-align:left;background:#fff;border:1px solid var(--line);border-radius:26px;padding:28px;display:flex;flex-direction:column;gap:8px;overflow:hidden;min-height:330px;box-shadow:var(--sh);transition:box-shadow .3s,border-color .3s}.subject-card:hover{box-shadow:0 30px 60px -30px #1e1b4b73;border-color:transparent}.subject-glow{position:absolute;width:240px;height:240px;border-radius:50%;top:-120px;right:-100px;filter:blur(50px);opacity:.22;transition:opacity .3s,transform .5s}.subject-card:hover .subject-glow{opacity:.4;transform:scale(1.2)}.subject-icon{width:64px;height:64px;border-radius:18px;display:grid;place-items:center;color:#fff;margin-bottom:12px;box-shadow:0 12px 26px -12px #1e1b4b80}.subject-ta{font-family:var(--ta);font-weight:700;color:var(--muted);font-size:.92rem}.subject-name{font-size:1.6rem;font-weight:800;letter-spacing:-.02em}.subject-desc{color:var(--muted);font-size:.92rem}.subject-stats{display:flex;gap:16px;margin-top:auto;padding-top:14px;font-size:.86rem;color:var(--ink-2)}.subject-stats b{font-size:1.1rem;color:var(--ink)}.subject-cta{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--indigo-600);margin-top:6px}.subject-card:hover .subject-cta svg{transform:translate(4px)}.subject-cta svg{transition:transform .2s}.class-picker{display:grid;grid-template-columns:1fr 1fr;gap:14px}.class-card{position:relative;text-align:left;border-radius:20px;padding:22px;border:1.5px solid var(--line);display:flex;flex-direction:column;gap:8px;align-items:flex-start;overflow:hidden;background:#fff;transition:border-color .2s,box-shadow .2s}.class-card.free{background:linear-gradient(160deg,#ecfdf5,#fff 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.auth-side{background:linear-gradient(160deg,#0b0a24,#111827)}.portal{min-height:100vh;display:grid;grid-template-columns:260px 1fr;background:var(--bg)}.sidebar{position:sticky;top:0;height:100vh;background:#fff;border-right:1px solid var(--line);padding:20px 14px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}.sidebar-brand{padding:4px 8px 18px;display:block}.sidebar nav{display:flex;flex-direction:column;gap:2px}.side-link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;font-weight:600;font-size:.92rem;color:var(--ink-2);transition:background .15s,color .15s;width:100%;text-align:left}.side-link:hover{background:var(--surface-2);color:var(--ink)}.side-link.active{background:var(--indigo-50);color:var(--indigo-700)}.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:4px;padding-top:14px;border-top:1px solid var(--line)}.me{display:flex;gap:10px;align-items:center;padding:8px}.me b{display:block;font-size:.88rem}.me 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p{margin:0}.page-pad{padding:24px}.section-title{font-size:1.02rem;margin:10px 0;display:flex;align-items:center;gap:8px}.mobile-top,.bottom-nav{display:none}.continue-card{display:flex;gap:20px;align-items:center;padding:16px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh)}.continue-card .thumb{width:200px;border-radius:14px}.continue-card h4{margin:0;font-size:1.1rem}.mini-course{padding:16px;display:flex;flex-direction:column;gap:8px}.mini-course h4{margin:0}.mini-course .btn{align-self:flex-start;margin-top:4px}.next-card{display:flex;gap:16px;align-items:center;padding:18px;border-radius:18px;background:linear-gradient(135deg,#eef2ff,#fff);border:1px solid var(--indigo-100);flex-wrap:wrap}.next-card.unlock{background:linear-gradient(135deg,#fffbeb,#fff);border-color:#fde68a}.next-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:var(--navy-800);color:#fff}.next-card.unlock 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