:root {
  --bg: #0b0f14;
  --bg-elev: #131923;
  --bg-elev-2: #171f2c;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #f43f5e;
  --accent-600: #e11d48;
  --accent-700: #be123c;
  --border: #253046;
  --green: #22c55e;
  --yellow: #f59e0b;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: radial-gradient(1200px 700px at 10% -10%, #0e141f, var(--bg)); color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, sans-serif;
  line-height: 1.5;
}
.app-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 20px; border-bottom: 1px solid var(--border); background: rgba(19,25,35,0.7); backdrop-filter: saturate(120%) blur(6px);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; gap: 12px; align-items: center; }
.logo { width: 40px; height: 40px; }
.app-title { margin: 0; font-size: 20px; letter-spacing: 0.3px; }
.app-sub { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.plan { display: flex; align-items: center; gap: 8px; }
.badge { display: inline-block; padding: 4px 8px; border-radius: 999px; font-size: 12px; }
.badge-red { background: linear-gradient(180deg, var(--accent), var(--accent-600)); color: white; }
.quota { color: var(--muted); font-size: 12px; }
.container { max-width: 1100px; margin: 20px auto; padding: 0 16px; }
.grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; }
@media (max-width: 960px) { .grid { grid-template-columns: 1fr; } .plan { display:none; } }
.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.card + .card { margin-top: 16px; }
.game-card { padding: 0; overflow: hidden; }
.game-toolbar { display: flex; justify-content: space-between; align-items: center; padding: 12px; border-bottom: 1px solid var(--border); background: var(--bg-elev-2); }
.controls { display: flex; gap: 8px; flex-wrap: wrap; }
.status { color: var(--muted); font-size: 13px; }
.canvas-wrap { position: relative; background: #0c1118; }
#gameCanvas { display: block; width: 100%; height: auto; background: transparent; }
.overlay { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(12, 15, 20, 0.6); }
.overlay-content { background: var(--bg-elev-2); border: 1px solid var(--border); padding: 16px 20px; border-radius: 10px; text-align: center; }
.hud { display: flex; gap: 16px; padding: 10px 12px; border-top: 1px solid var(--border); color: var(--muted); font-weight: 600; background: var(--bg-elev-2); }
.help { padding: 10px 12px; color: var(--muted); font-size: 13px; }
.warn-desktop { color: #a78bfa; }

.btn { appearance: none; border: 1px solid var(--border); background: #141b27; color: var(--text); padding: 8px 12px; border-radius: 8px; cursor: pointer; font-weight: 600; transition: 0.15s ease background, 0.15s ease border-color; }
.btn:hover { background: #1a2230; border-color: #34425f; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: linear-gradient(180deg, var(--accent), var(--accent-600)); border-color: var(--accent-700); color: white; }
.btn-primary:hover { background: linear-gradient(180deg, var(--accent-600), var(--accent-700)); }
.btn-ghost { background: transparent; }

.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 8px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.8px; }

.field { display: grid; gap: 6px; margin-bottom: 10px; }
.field.checkbox { grid-template-columns: auto 1fr; align-items: center; gap: 8px; }
.field label { color: var(--muted); font-size: 13px; }
.field input[type='text'], .field select { background: #101620; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 8px 10px; }
.field input[type='text']:focus, .field select:focus { outline: 2px solid var(--accent-600); border-color: var(--accent-700); }
.actions { display: flex; gap: 10px; align-items: center; }
.error-text { color: var(--accent); font-size: 13px; }

.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border); background: #0f1621; }
.pill-easy { background: #0c1f17; color: #86efac; border-color: #134e4a; }
.pill-normal { background: #18172a; color: #c4b5fd; border-color: #3730a3; }
.pill-hard { background: #2a1115; color: #fda4af; border-color: #7f1d1d; }

.export-row { display: flex; gap: 8px; margin: 8px 0; }
.bullets { margin: 0; padding-left: 18px; color: var(--muted); }

.footer { max-width: 1100px; margin: 24px auto; padding: 0 16px; display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; }