:root{--bg-0: #0d1823;--bg-1: #12283a;--bg-2: #1a3c52;--panel: rgba(11, 21, 33, .84);--panel-strong: rgba(8, 15, 25, .92);--line: rgba(138, 212, 255, .28);--accent: #6de1ff;--accent-2: #ffd166;--ink: #eef8ff;--muted: #95aec2;--danger: #ff7f7f;--success: #7df1b8;--shadow: 0 18px 45px rgba(2, 8, 16, .42);color-scheme:dark;font-family:Lucida Console,Courier New,monospace}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-height:100vh;background:radial-gradient(circle at top,rgba(109,225,255,.16),transparent 34%),radial-gradient(circle at bottom right,rgba(255,209,102,.12),transparent 24%),linear-gradient(180deg,#101e2d,#08121b);color:var(--ink)}button,input{font:inherit}.shell{min-height:100vh;padding:24px;display:grid;place-items:center}.game-shell{width:min(100%,1320px);display:grid;gap:18px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.title-group{display:grid;gap:6px}.eyebrow{color:var(--accent-2);letter-spacing:.24em;text-transform:uppercase;font-size:12px}.title{margin:0;font-size:clamp(28px,4vw,52px);line-height:.9;text-shadow:0 0 18px rgba(109,225,255,.24)}.subtitle{margin:0;color:var(--muted);max-width:720px;line-height:1.6}.badge-row{display:flex;gap:12px;flex-wrap:wrap}.badge{padding:10px 14px;border:1px solid var(--line);border-radius:999px;background:#0810199e;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:13px;color:var(--muted)}.badge strong{color:var(--ink)}.playfield{position:relative;aspect-ratio:16 / 9;border-radius:28px;overflow:hidden;border:1px solid rgba(121,191,230,.24);background:linear-gradient(180deg,rgba(255,255,255,.04),transparent 22%),linear-gradient(135deg,#0b1522,#101d2a 55%,#0f2732);box-shadow:var(--shadow)}.playfield:before{content:"";position:absolute;top:10px;right:10px;bottom:10px;left:10px;border-radius:18px;border:1px solid rgba(109,225,255,.14);pointer-events:none;z-index:2}.game-canvas{position:absolute;top:0;right:0;bottom:0;left:0}.game-canvas canvas{image-rendering:pixelated}.hud-layer{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:3}.hud-panel{position:absolute;pointer-events:auto;padding:12px 14px;border-radius:16px;border:1px solid var(--line);background:var(--panel);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 10px 30px #0000003d}.hud-panel strong{color:var(--accent)}.hud-top-left{top:18px;left:18px;min-width:220px}.hud-top-right{top:18px;right:18px;text-align:right}.hud-bottom-left{bottom:18px;left:18px;max-width:340px}.hud-stack{display:grid;gap:8px}.mini-label{color:var(--muted);font-size:12px;letter-spacing:.12em;text-transform:uppercase}.status-text{color:var(--success)}.status-text.is-offline{color:var(--danger)}.join-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;display:grid;place-items:center;padding:20px;background:linear-gradient(180deg,#03070c3d,#03070cd1),radial-gradient(circle at center,rgba(109,225,255,.08),transparent 34%)}.join-overlay[hidden]{display:none}.join-card{width:min(100%,460px);padding:26px;border-radius:24px;border:1px solid rgba(109,225,255,.2);background:var(--panel-strong);box-shadow:var(--shadow);display:grid;gap:18px}.join-card h2{margin:0;font-size:clamp(22px,3vw,34px)}.join-card p{margin:0;color:var(--muted);line-height:1.7}.join-form{display:grid;gap:14px}.text-input{width:100%;padding:14px 16px;border-radius:14px;border:1px solid rgba(109,225,255,.26);background:#0f1c2ae0;color:var(--ink);outline:none}.text-input:focus{border-color:var(--accent);box-shadow:0 0 0 4px #6de1ff24}.button-row{display:flex;gap:12px;flex-wrap:wrap}.button{border:0;border-radius:14px;padding:14px 18px;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease,opacity .16s ease}.button:hover{transform:translateY(-1px)}.button:disabled{cursor:wait;opacity:.6}.button-primary{background:linear-gradient(135deg,var(--accent) 0%,#5cc3ff 100%);color:#04111b;box-shadow:0 8px 24px #6de1ff47}.button-secondary{background:#ffffff0f;color:var(--ink);border:1px solid rgba(255,255,255,.08)}.error-text{min-height:20px;color:#ff9898;font-size:14px}.hint-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.hint-chip{padding:10px 12px;border-radius:14px;background:#ffffff08;border:1px solid rgba(255,255,255,.05);color:var(--muted);font-size:13px}.footer-note{color:var(--muted);font-size:13px;line-height:1.6}@media (max-width: 960px){.shell{padding:16px}.playfield{border-radius:22px}.hud-panel{font-size:13px}}@media (max-width: 720px){.topbar{align-items:flex-start}.hud-top-right{top:auto;right:18px;bottom:18px}.hud-bottom-left{max-width:220px}.join-card{padding:22px}.hint-grid{grid-template-columns:1fr}}