:root{--teal-900: #292524;--teal-700: #ea580c;--teal-500: #f59e0b;--teal-50: #fff7ed;--ink: #0b1f24;--slate: #475569;--slate-300: #cbd5e1;--bg: #f8fafc;--line: #e2e8f0;--white: #ffffff;--radius: 14px;--shadow: 0 10px 30px rgba(8, 47, 73, .08);--shadow-lg: 0 24px 60px rgba(8, 47, 73, .16)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.serif{font-family:Lora,Georgia,serif}.container{max-width:1140px;margin:0 auto;padding:0 24px}.section{padding:84px 0}@media (max-width: 640px){.section{padding:56px 0}}.nav{position:sticky;top:0;z-index:50;background:#ffffffd9;-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}.nav-inner{display:flex;align-items:center;justify-content:space-between;height:80px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--teal-900)}.brand .dot{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--teal-700),var(--teal-500));display:grid;place-items:center;color:#fff;font-size:16px}.nav-links{display:flex;align-items:center;gap:28px}.nav-links a{color:var(--slate);font-weight:500;font-size:15px}.nav-links a:hover{color:var(--teal-700)}@media (max-width: 760px){.nav-links a:not(.btn){display:none}}.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;border-radius:10px;padding:12px 22px;cursor:pointer;border:none;transition:all .18s ease}.btn-primary{background:linear-gradient(135deg,var(--teal-700),var(--teal-500));color:#fff;box-shadow:0 8px 20px #ea580c47}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px #ea580c61}.btn-ghost{background:#fff;color:var(--teal-700);border:1.5px solid var(--line)}.btn-ghost:hover{border-color:var(--teal-500);color:var(--teal-900)}.btn-lg{padding:15px 30px;font-size:16px}.btn-block{width:100%;justify-content:center}.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#1c1917,#292524 45%,#ea580c);color:#fff7ed}.hero:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 80% 20%,rgba(234,88,12,.35),transparent 45%);pointer-events:none}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:90px 0 96px;position:relative;z-index:1}@media (max-width: 900px){.hero-grid{grid-template-columns:1fr;gap:32px;padding:60px 0}}.pill{display:inline-flex;align-items:center;gap:8px;background:#ffffff1a;border:1px solid rgba(255,255,255,.22);color:#fed7aa;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600}.hero h1{font-size:clamp(2.2rem,4.8vw,3.5rem);line-height:1.1;margin:22px 0 18px;color:#fff;letter-spacing:-.02em}.hero h1 em{font-style:normal;color:#fdba74}.hero p.lead{font-size:clamp(1.02rem,1.6vw,1.2rem);color:#e7e5e4;max-width:560px;margin-bottom:30px}.hero-cta{display:flex;gap:14px;flex-wrap:wrap}.hero-stats{display:flex;gap:30px;margin-top:40px}.hero-stats .s b{display:block;font-size:26px;font-weight:800;color:#fff}.hero-stats .s span{font-size:13px;color:#d6b89c}.model-card{background:#ffffff0f;border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:14px;box-shadow:var(--shadow-lg)}.model-card model-viewer,.model-card .model-fallback{width:100%;height:340px;border-radius:14px;background:#fff;display:block}.model-fallback{display:grid;place-items:center;color:#ea580c;text-align:center;padding:24px}.model-card .cap{text-align:center;color:#9fd;font-size:13px;padding:10px 0 4px;color:#fdba74}.hero-photo{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.16)}.hero-photo img{width:100%;height:440px;object-fit:cover;display:block}@media (max-width: 900px){.hero-photo img{height:300px}}.rules-card{background:#ffffff0f;border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:22px;box-shadow:var(--shadow-lg)}.rules-head{color:#fff;font-weight:800;font-size:18px;margin-bottom:16px;text-align:center}.rules-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.rule{background:#ffffff12;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:14px 8px;text-align:center;color:#fde7d3;font-size:12px;font-weight:600;display:flex;flex-direction:column;align-items:center;gap:8px;transition:all .18s ease}.rule:hover{background:#ea580c38;border-color:#ea580c80;transform:translateY(-2px)}.rule-ic{font-size:26px;line-height:1}.eyebrow{color:var(--teal-700);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}.h2{font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.15;margin:12px 0 14px;letter-spacing:-.02em}.sub{color:var(--slate);font-size:17px;max-width:640px}.center{text-align:center;margin:0 auto}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}@media (max-width: 860px){.grid-3{grid-template-columns:1fr}}.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.feature .ic{width:46px;height:46px;border-radius:12px;background:var(--teal-50);color:var(--teal-700);display:grid;place-items:center;font-size:22px;margin-bottom:16px}.feature h3{font-size:18px;margin-bottom:8px}.feature p{color:var(--slate);font-size:15px}.curriculum{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}@media (max-width: 760px){.curriculum{grid-template-columns:1fr}}.mod{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px;display:flex;gap:16px;align-items:flex-start;transition:all .18s ease}.mod:hover{border-color:var(--teal-500);box-shadow:var(--shadow);transform:translateY(-2px)}.mod .num{flex:none;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--teal-700),var(--teal-500));color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px}.mod h4{font-size:16px;margin-bottom:4px}.mod p{color:var(--slate);font-size:14px}.mod .tags{display:flex;gap:8px;margin-top:10px}.tag{font-size:12px;font-weight:600;padding:3px 9px;border-radius:999px}.tag-video{background:#eff6ff;color:#2563eb}.tag-3d{background:#fff7ed;color:#d97706}.premium-sec{background:linear-gradient(180deg,#fffdf6,#fff);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.premium-eyebrow{color:#b45309}.pcard{position:relative;background:#fff;border:1px solid #f1e4c3;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:all .18s ease}.pcard:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}.pcard video{width:100%;aspect-ratio:16 / 9;background:#000;display:block}.pcard-badge{position:absolute;top:12px;left:12px;z-index:2;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;box-shadow:0 4px 12px #d9770666}.pcard-body{padding:18px 20px 22px}.pcard-body h3{font-size:17px;margin-bottom:6px}.pcard-body p{color:var(--slate);font-size:14px}.cta-band{background:linear-gradient(135deg,var(--teal-900),var(--teal-700));border-radius:22px;padding:56px 40px;text-align:center;color:#fff;box-shadow:var(--shadow-lg)}.cta-band h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:12px}.cta-band p{color:#e7e5e4;margin-bottom:26px}.footer{background:#1c1917;color:#8aa9b0;padding:48px 0;font-size:14px}.footer .brand{color:#fff;margin-bottom:12px}.footer a:hover{color:#fff}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}@media (max-width: 860px){.auth-wrap{grid-template-columns:1fr}.auth-aside{display:none}}.auth-aside{background:linear-gradient(160deg,#1c1917,#ea580c);color:#fff7ed;padding:56px 48px;display:flex;flex-direction:column;justify-content:center}.auth-aside h2{font-size:2rem;color:#fff;margin-bottom:16px;line-height:1.2}.auth-aside ul{list-style:none;margin-top:24px}.auth-aside li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;color:#e7e5e4}.auth-aside li b{color:#fdba74}.auth-main{display:grid;place-items:center;padding:40px 24px}.auth-card{width:100%;max-width:400px}.auth-card h1{font-size:1.7rem;margin-bottom:6px}.auth-card .muted{color:var(--slate);margin-bottom:28px}.field{margin-bottom:18px}.field label{display:block;font-weight:600;font-size:14px;margin-bottom:7px}.field input{width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit}.field input:focus{outline:none;border-color:var(--teal-500);box-shadow:0 0 0 3px #ea580c26}.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca;padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:18px}.learn{display:grid;grid-template-columns:320px 1fr;min-height:100vh}@media (max-width: 900px){.learn{grid-template-columns:1fr}}.learn-side{background:#1c1917;color:#e7e5e4;overflow-y:auto;max-height:100vh;position:sticky;top:0}@media (max-width: 900px){.learn-side{position:static;max-height:none}}.learn-side .side-head{padding:22px 22px 14px;border-bottom:1px solid rgba(255,255,255,.08)}.learn-side .side-head .brand{color:#fff;font-size:16px}.learn-side .side-head .who{color:#a8a29e;font-size:13px;margin-top:8px}.mod-group{padding:8px 0}.mod-title{padding:14px 22px 6px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#a8a29e;font-weight:700}.les{display:flex;align-items:center;gap:11px;padding:10px 22px;cursor:pointer;font-size:14px;color:#e7e5e4;border-left:3px solid transparent}.les:hover{background:#ffffff0d}.les.active{background:#ea580c29;border-left-color:var(--teal-500);color:#fff}.les .lic{width:22px;height:22px;border-radius:6px;display:grid;place-items:center;font-size:12px;flex:none}.les .lic.video{background:#1e3a5f;color:#93c5fd}.les .lic.glb{background:#44403c;color:#fdba74}.les .lic.locked{background:#3a2f1e;color:#d6b06a}.les .done{margin-left:auto;color:#34d399;font-size:13px}.learn-main{padding:32px;overflow-y:auto;max-height:100vh}@media (max-width: 900px){.learn-main{max-height:none;padding:22px}}.learn-main .crumb{color:var(--teal-700);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.08em}.learn-main h1{font-size:1.6rem;margin:8px 0 20px}.viewer{background:#1c1917;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-lg)}.viewer video{width:100%;display:block;background:#000;max-height:70vh}.viewer model-viewer{width:100%;height:62vh;min-height:420px;background:#fff;display:block}.viewer .empty{padding:80px 24px;text-align:center;color:#fdba74}.viewer .empty .big{font-size:44px;margin-bottom:12px}.lockpanel{padding:44px 24px;text-align:center}.lock-ic{font-size:46px;margin-bottom:12px}.lockpanel h3{font-size:22px;color:#fff;margin-bottom:8px}.lockpanel p{color:#cfe7eb;max-width:470px;margin:0 auto 22px;font-size:15px;line-height:1.6}.enquiry{max-width:360px;margin:0 auto;display:flex;flex-direction:column;gap:11px;text-align:left}.enquiry input{padding:13px 14px;border-radius:10px;border:1.5px solid rgba(255,255,255,.25);background:#fff;color:#0b1f24;font-size:15px;font-family:inherit}.enquiry input:focus{outline:none;border-color:var(--teal-500)}.enq-err{background:#fef2f2;color:#b91c1c;padding:10px 12px;border-radius:8px;font-size:14px}.lesson-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:22px;flex-wrap:wrap}.hint{color:var(--slate);font-size:14px}.badge3d{display:inline-flex;gap:7px;align-items:center;background:var(--teal-50);color:var(--teal-700);padding:6px 12px;border-radius:999px;font-size:13px;font-weight:600}.topbar{display:none}@media (max-width: 900px){.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:#1c1917;color:#fff}}.dot-logo{height:34px;width:auto;border-radius:8px;vertical-align:middle;object-fit:contain;background:#fff;padding:2px 4px;box-sizing:border-box}.brand-logo{height:56px;width:auto;object-fit:contain;background:#fff;padding:4px 9px;border-radius:9px;box-shadow:0 2px 10px #0000001f;display:block}.brand-tag{align-self:center;font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;padding:5px 11px;border-radius:999px;color:#fff;background:linear-gradient(135deg,var(--teal-700),var(--teal-500));box-shadow:0 3px 10px #0003;white-space:nowrap}