:root{--bg-base: #070b11;--line-soft: rgba(255, 255, 255, .08);--text-dim: #7e95a7;color:#f4efe3;font-family:Segoe UI,Trebuchet MS,sans-serif;background:radial-gradient(circle at 18% 16%,rgba(255,137,74,.14),transparent 24%),radial-gradient(circle at 84% 18%,rgba(143,232,255,.11),transparent 26%),radial-gradient(circle at 52% 110%,rgba(255,211,107,.08),transparent 30%),linear-gradient(180deg,#111826 0%,var(--bg-base) 52%,#030507 100%)}*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%}body{min-height:100vh;overflow:hidden}body:before,body:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none}body:before{background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 92%);mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 92%)}body:after{background:radial-gradient(circle at 20% 22%,rgba(255,176,98,.08),transparent 12%),radial-gradient(circle at 78% 12%,rgba(143,232,255,.08),transparent 14%),radial-gradient(circle at 65% 62%,rgba(255,122,69,.05),transparent 16%)}#app{width:min(1360px,calc(100vw - 24px));margin:0 auto;padding:12px 0}.app-shell{min-height:100vh;display:grid;place-items:center}.game-stage{width:100%}.game-frame{position:relative;aspect-ratio:16 / 9;border:1px solid var(--line-soft);border-radius:28px;overflow:hidden;background:radial-gradient(circle at top,rgba(143,232,255,.08),transparent 36%),linear-gradient(180deg,#101824d1,#05080df5);box-shadow:inset 0 1px #ffffff0d,0 18px 72px #00000057;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.game-frame:after{content:"";position:absolute;top:10px;right:10px;bottom:10px;left:10px;border:1px solid rgba(255,255,255,.08);border-radius:18px;pointer-events:none}.canvas-fallback{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:24px;color:var(--text-dim);font-size:.95rem;letter-spacing:.08em;text-transform:uppercase}.canvas-fallback-error{color:#ffd1bd}.game-canvas{display:block;width:100%;height:100%}.about-panel{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:#04060aeb;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);opacity:0;pointer-events:none;transition:opacity .3s ease}.about-panel.about-open{opacity:1;pointer-events:auto}.about-inner{position:relative;max-width:560px;width:calc(100% - 48px);max-height:80vh;overflow-y:auto;padding:40px 36px;background:linear-gradient(180deg,#0e1420f2,#080c12fa);border:1px solid rgba(255,255,255,.08);border-radius:20px;box-shadow:0 24px 80px #00000080}.about-close{position:absolute;top:14px;right:18px;background:none;border:none;color:#fff6;font-size:28px;cursor:pointer;padding:4px 10px;border-radius:8px;transition:color .2s,background .2s}.about-close:hover{color:#fff;background:#ffffff0f}.about-title{margin:0 0 4px;font-size:26px;font-weight:700;letter-spacing:2px;color:#f7efdc}.about-subtitle{margin:0 0 24px;font-size:13px;color:#ff9a4a;letter-spacing:4px;font-weight:700}.about-section{margin-bottom:20px}.about-section h3{margin:0 0 8px;font-size:14px;font-weight:700;color:#4ec8ff;letter-spacing:3px;text-transform:uppercase}.about-section p{margin:0 0 8px;font-size:13px;line-height:1.7;color:#bfb8a8}.about-section ul{margin:0;padding-left:18px}.about-section li{font-size:13px;line-height:1.7;color:#bfb8a8;margin-bottom:4px}.about-section strong{color:#f7efdc}.about-meta{border-top:1px solid rgba(255,255,255,.06);padding-top:16px}.about-meta p{text-align:center;font-size:11px;color:#7e95a7}.about-hint{text-align:center;font-size:11px;color:#fff3;margin-top:16px}.about-hint kbd{display:inline-block;padding:1px 6px;border:1px solid rgba(255,255,255,.15);border-radius:4px;font-family:monospace;font-size:12px;color:#fff6}@media(max-width:720px){#app{width:min(100vw - 16px,100%);padding:8px 0}.game-frame{border-radius:22px}.game-frame:after{top:8px;right:8px;bottom:8px;left:8px;border-radius:14px}}