:root{--bg:#0c1018;--panel:#121827;--text:#f4f6fb;--muted:#aeb7ca;--accent:#fff;--gap:14px}
*{box-sizing:border-box} html,body{margin:0;min-height:100%;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}
body{min-height:100vh}.app{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:26px;padding:28px;overflow:hidden}
.content{min-width:0;display:flex;flex-direction:column;justify-content:center;padding:clamp(24px,5vw,80px);border-radius:28px;background:linear-gradient(145deg,#171e30,#0f1420);position:relative;overflow:hidden}
.content::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 15%,rgba(255,255,255,.09),transparent 30%);pointer-events:none}
.eyebrow{letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-size:.75rem}.content h1{font-size:clamp(3rem,8vw,8rem);line-height:.88;margin:.15em 0 .22em;max-width:900px}.content p{font-size:clamp(1rem,1.8vw,1.35rem);line-height:1.65;color:var(--muted);max-width:720px}.content.fade{animation:fade .35s ease}
.menu{height:calc(100vh - 56px);display:grid;grid-template-rows:repeat(6,1fr);gap:var(--gap)}
.menu button{position:relative;border:0;padding:0;border-radius:18px;overflow:hidden;cursor:pointer;background:#222;opacity:.62;transform:scale(.97);transition:.25s ease;outline:none}
.menu button:hover,.menu button:focus-visible{opacity:1;transform:scale(1)}.menu button.active{opacity:1;transform:scale(1);box-shadow:0 0 0 2px var(--accent)}
.menu img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s ease}.menu button:hover img{transform:scale(1.06)}
.menu span{position:absolute;left:12px;bottom:10px;font-weight:700;text-shadow:0 2px 10px #000;font-size:.86rem}
@keyframes fade{from{opacity:.25;transform:translateY(8px)}to{opacity:1;transform:none}}
@media(max-width:760px){.app{grid-template-columns:1fr;grid-template-rows:1fr auto;padding:16px;gap:16px}.content{min-height:calc(100vh - 150px);padding:32px 24px}.menu{height:100px;grid-template-columns:repeat(6,1fr);grid-template-rows:1fr;gap:8px;overflow-x:auto}.menu button{min-width:75px;border-radius:12px}.menu span{font-size:.68rem;left:7px;bottom:6px}}
.menu-item{position:relative}.menu-item span{position:absolute;left:10px;bottom:8px;background:#000b;color:#fff;padding:4px 7px;border-radius:6px;font-size:12px}.menu-item.active{outline:3px solid currentColor;transform:translateX(-5px)}.back{border:0;background:none;padding:0;color:inherit;opacity:.65;cursor:pointer;font:inherit}.back:hover{opacity:1}.crumb{display:flex;gap:7px;margin-bottom:24px}.eyebrow{font-size:12px;letter-spacing:.2em;opacity:.55;margin-bottom:10px}.hint{opacity:.55}.feature{margin-top:30px;max-width:520px}.feature img{width:100%;border-radius:18px;display:block}