:root { --panel: rgba(255,249,242,.75); --ink:#221b18; --muted:#63554e; --accent:#df6d2d; --accent-2:#1f7a5c; --accent-3:#1773b0; --shadow:0 20px 60px rgba(109,60,23,.14); --radius:24px; }
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:"Manrope",sans-serif;color:var(--ink);background:radial-gradient(circle at top left,rgba(255,205,130,.52),transparent 28%),radial-gradient(circle at 85% 15%,rgba(31,122,92,.14),transparent 25%),linear-gradient(180deg,#fff9f2 0%,#f4efe8 36%,#eef4f8 100%)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.35;background-image:linear-gradient(rgba(34,27,24,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(34,27,24,.02) 1px,transparent 1px);background-size:28px 28px}
.page-shell{width:min(1500px,calc(100% - 48px));margin:0 auto;position:relative;z-index:1}.hero{min-height:100vh;padding:24px 0 60px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:42px;padding:10px 12px 10px 18px;border:1px solid rgba(34,27,24,.08);border-radius:999px;background:rgba(255,252,247,.68);backdrop-filter:blur(18px);box-shadow:0 18px 48px rgba(109,60,23,.1)}.brand{display:inline-flex;align-items:center;gap:12px;font-weight:800;margin-right:auto}.brand-mark{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#f2b84b);box-shadow:inset 0 0 0 8px rgba(255,255,255,.46),0 10px 20px rgba(223,109,45,.18)}.nav-group{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end;padding:5px;border:1px solid rgba(34,27,24,.07);border-radius:999px;background:rgba(255,255,255,.48)}.nav-pill,.cta{text-decoration:none;color:inherit}.nav-pill{border:1px solid transparent;padding:10px 16px;border-radius:999px;background:transparent;font-weight:700;transition:transform 180ms ease,background 180ms ease,border-color 180ms ease,box-shadow 180ms ease}.nav-pill:hover,.nav-pill:focus-visible{transform:translateY(-1px);border-color:rgba(223,109,45,.18);background:rgba(255,255,255,.86);box-shadow:0 10px 22px rgba(109,60,23,.1);outline:none}.button-pill{font:inherit;cursor:pointer}.back-button{display:grid;place-items:center;flex:0 0 auto;width:50px;height:50px;border:2px solid rgba(223,109,45,.28);border-radius:999px;background:linear-gradient(135deg,var(--accent),#f2b84b);color:#fffaf3;font:inherit;cursor:pointer;box-shadow:0 16px 28px rgba(223,109,45,.24),inset 0 0 0 1px rgba(255,255,255,.28);transition:transform 180ms ease,background 180ms ease,box-shadow 180ms ease}.back-icon{position:relative;display:block;width:20px;height:14px}.back-icon::before,.back-icon::after{content:"";position:absolute;left:1px}.back-icon::before{top:5px;width:18px;height:3px;border-radius:999px;background:currentColor}.back-icon::after{top:2px;width:9px;height:9px;border-left:3px solid currentColor;border-bottom:3px solid currentColor;transform:rotate(45deg)}.back-button:hover,.back-button:focus-visible{transform:translateX(-2px) scale(1.04);background:linear-gradient(135deg,#c95720,var(--accent));color:#fffaf3;box-shadow:0 18px 34px rgba(223,109,45,.3),inset 0 0 0 1px rgba(255,255,255,.34);outline:none}
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.hero-metrics{margin-top:36px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.hero-metrics article,.panel,.info-card,.timeline-step,.algorithm-card{background:var(--panel);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.42);box-shadow:var(--shadow)}.hero-metrics article{padding:18px;border-radius:18px}.hero-metrics strong{display:block;font-size:1.35rem}.hero-metrics span,.info-card p,.algorithm-copy p,.timeline-step p,.compiler-note,.visual-note{color:var(--muted);line-height:1.7}
.visual-card{background:radial-gradient(circle at 12% 12%,rgba(243,192,96,.16),transparent 24%),radial-gradient(circle at 86% 76%,rgba(31,122,92,.14),transparent 28%),rgba(34,27,24,.96);color:#fffaf3;border-radius:30px;padding:18px;box-shadow:0 28px 80px rgba(34,27,24,.26);position:relative;overflow:hidden}.visual-card::before{content:"";position:absolute;inset:0;opacity:.18;background:linear-gradient(115deg,transparent 0 38%,rgba(255,255,255,.18) 46%,transparent 54% 100%),repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 26px);transform:translateX(-70%);animation:panelSweep 5.5s ease-in-out infinite}.visual-header{position:relative;z-index:2;display:flex;align-items:center;gap:10px;color:rgba(255,250,243,.8);font-size:.93rem}.status-dot{width:10px;height:10px;border-radius:50%;background:#f3c060;box-shadow:0 0 18px rgba(243,192,96,.85)}
.garage-stage{position:relative;z-index:1;min-height:330px;margin:18px 0;border-radius:24px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);overflow:hidden;padding:34px 20px}.floor-label{position:absolute;left:20px;padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.1);font-size:.8rem;font-weight:800;color:rgba(255,250,243,.78)}.floor-label.top{top:14px}.floor-label.bottom{bottom:14px}.garage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}.slot{min-height:86px;border-radius:18px;display:grid;place-items:center;font-weight:800;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);position:relative;overflow:hidden}.slot::after{content:"";position:absolute;inset:auto 14px 12px;height:4px;border-radius:999px;background:rgba(255,255,255,.16)}.slot.active{background:linear-gradient(135deg,rgba(243,192,96,.9),rgba(223,109,45,.84));color:#2a211d;box-shadow:0 18px 34px rgba(223,109,45,.18)}.vehicle-token{position:absolute;left:22px;top:48%;width:76px;height:42px;border-radius:18px 22px 14px 14px;background:linear-gradient(135deg,#5bdd9d,#1f7a5c);display:grid;place-items:center;font-weight:900;box-shadow:0 18px 30px rgba(31,122,92,.28);animation:drivePath 4.2s ease-in-out infinite}.vehicle-token::before,.vehicle-token::after{content:"";position:absolute;bottom:-5px;width:12px;height:12px;border-radius:50%;background:#211916;border:2px solid rgba(255,255,255,.55)}.vehicle-token::before{left:13px}.vehicle-token::after{right:13px}.gate-line{position:absolute;left:22px;right:22px;top:51%;height:3px;border-radius:999px;background:linear-gradient(90deg,rgba(243,192,96,.15),rgba(243,192,96,.9),rgba(91,221,157,.15));animation:roadGlow 2.2s ease-in-out infinite}
.turn-console{position:relative;z-index:2;display:grid;gap:10px}.console-row{position:relative;display:flex;justify-content:space-between;gap:14px;padding:13px 14px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);overflow:hidden}.console-row span{color:rgba(255,250,243,.68)}.console-row::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(243,192,96,.14),transparent);transform:translateX(-100%)}.visual-card.is-updating .console-row::after{animation:dataSweep 700ms ease}
.section{padding:72px 0}.section-heading{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:26px}.section-heading h2{font-size:clamp(2.1rem,4vw,3.8rem);max-width:760px}.logic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.info-card{border-radius:var(--radius);padding:24px;border-top:5px solid var(--accent)}.accent-green{border-top-color:var(--accent-2)}.accent-blue{border-top-color:var(--accent-3)}.info-card h3,.algorithm-copy h3,.timeline-step h3,.code-panel h3{margin:0 0 10px;font-size:1.35rem}.timeline{display:grid;gap:14px}.timeline-step{border-radius:24px;padding:20px;display:grid;grid-template-columns:90px 1fr;gap:18px}.step-number{font-family:"DM Serif Display",serif;font-size:2.2rem;color:var(--accent);line-height:1}.algorithm-stack{display:grid;gap:18px}.algorithm-card{border-radius:var(--radius);padding:22px;display:grid;grid-template-columns:1fr .9fr;gap:18px}.algorithm-tag{margin:0 0 10px;font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-2)}pre{position:relative;margin:18px 0 0;padding:18px;border-radius:18px;background:rgba(34,27,24,.96);color:#fff7ee;overflow-x:auto}code{font-family:"Courier New",monospace;font-size:.94em}.algorithm-visual{border-radius:22px;padding:18px;background:rgba(34,27,24,.95);color:#fffaf3;min-height:260px}.visual-title{font-weight:800;margin-bottom:18px}.reason-card,.flow-map span{margin:14px 0;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);color:rgba(255,250,243,.86)}.flow-map{display:grid;gap:10px}.flow-map span{margin:0;font-weight:800}
.compiler-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}.code-panel,.compiler-panel{border-radius:var(--radius);padding:24px;min-height:820px}.code-panel-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.code-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.copy-button{border:0;border-radius:999px;padding:11px 16px;background:linear-gradient(135deg,var(--accent),#f2b84b);color:#fffaf3;font-weight:800;cursor:pointer;box-shadow:0 14px 24px rgba(223,109,45,.18)}.secondary-button{background:rgba(255,255,255,.72);color:var(--ink);border:1px solid rgba(34,27,24,.1);box-shadow:none}.icon-button{width:42px;height:42px;padding:0;display:grid;place-items:center}.expand-icon{position:relative;width:16px;height:16px;display:inline-block}.expand-icon::before,.expand-icon::after{content:"";position:absolute;width:7px;height:7px;border-color:currentColor}.expand-icon::before{top:0;right:0;border-top:2px solid;border-right:2px solid}.expand-icon::after{left:0;bottom:0;border-left:2px solid;border-bottom:2px solid}.snippet-expand-button{position:absolute;top:10px;right:10px;width:38px;height:38px;border:0;border-radius:999px;display:grid;place-items:center;background:rgba(255,255,255,.15);color:#fffaf3;cursor:pointer;backdrop-filter:blur(10px)}.code-textarea{width:100%;min-height:680px;resize:vertical;border-radius:20px;border:1px solid rgba(34,27,24,.12);background:rgba(34,27,24,.96);color:#fff7ee;padding:18px;line-height:1.55;font-size:.92rem;font-family:"Courier New",monospace}.compiler-frame{width:100%;min-height:710px;margin-top:14px;border:1px solid rgba(34,27,24,.1);border-radius:20px;background:#fff}.code-modal{position:fixed;inset:0;z-index:20;display:none;grid-template-rows:auto 1fr;background:rgba(18,15,13,.98);padding:18px}.code-modal.open{display:grid}.modal-toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;color:#fffaf3;padding-bottom:14px}.modal-code{width:100%;min-height:0;resize:none;border-radius:18px;border:1px solid rgba(255,255,255,.12);background:#0f1512;color:#f5fff9;padding:22px;line-height:1.58;font-size:1rem;font-family:"Courier New",monospace}body.modal-open{overflow:hidden}.reveal{opacity:0;transform:translateY(24px);transition:opacity 700ms ease,transform 700ms ease}.reveal.visible{opacity:1;transform:translateY(0)}
@keyframes panelSweep{0%,35%{transform:translateX(-70%)}70%,100%{transform:translateX(70%)}}@keyframes drivePath{0%{transform:translate(0,0) rotate(0deg)}38%{transform:translate(242px,0) rotate(0deg)}52%{transform:translate(242px,-88px) rotate(-4deg)}74%,100%{transform:translate(358px,-88px) rotate(0deg)}}@keyframes roadGlow{0%,100%{opacity:.35}50%{opacity:1}}@keyframes dataSweep{from{transform:translateX(-100%)}to{transform:translateX(100%)}}
@media(max-width:980px){.hero-grid,.logic-grid,.algorithm-card,.compiler-layout{grid-template-columns:1fr}.hero{min-height:auto}}@media(max-width:720px){.page-shell{width:min(100% - 18px,1500px)}.topbar{gap:14px;flex-direction:column;align-items:flex-start;margin-bottom:34px;border-radius:24px;padding:14px}.nav-group{width:100%;justify-content:flex-start;border-radius:20px}.hero-copy h1{font-size:2.4rem}.hero-metrics{grid-template-columns:1fr}.timeline-step{grid-template-columns:1fr}.garage-grid{gap:10px}.vehicle-token{animation:none;left:calc(50% - 38px);top:45%}.code-panel,.compiler-panel{min-height:auto}.code-panel-header{align-items:flex-start;flex-direction:column}.code-actions{justify-content:flex-start}.code-textarea{min-height:520px}}