:root {
  --ink: #23201f;
  --ink-soft: #6a625c;
  --card: rgba(255, 252, 247, 0.86);
  --line: rgba(35, 32, 31, 0.12);
  --accent: #ff5a36;
  --accent-dark: #d7401f;
  --gold: #ffc233;
  --radius: 18px;
  font-family: ui-rounded, "SF Pro Rounded", "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: #e6f6ff; }
body { -webkit-tap-highlight-color: transparent; user-select: none; -webkit-user-select: none; }
button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible, canvas:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
canvas:focus { outline: none; }
kbd { display: inline-block; min-width: 1.6em; padding: 1px 5px; border-radius: 6px; background: rgba(35, 32, 31, 0.08); border-bottom: 2px solid rgba(35, 32, 31, 0.18); font: 700 11px/1.5 ui-monospace, SFMono-Regular, monospace; text-align: center; }

#app { position: fixed; inset: 0; background: linear-gradient(var(--sky-top, #6ec3f2), var(--sky-bottom, #e6f6ff) 70%); }
#scene { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; }

.hud { position: absolute; top: max(12px, env(safe-area-inset-top)); left: 12px; right: 12px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; pointer-events: none; }
.hud[hidden] { display: none; }
.hud-card { display: grid; gap: 0; padding: 8px 14px; border-radius: var(--radius); background: var(--card); backdrop-filter: blur(8px); box-shadow: 0 6px 20px rgba(35, 32, 31, 0.1); min-width: 118px; }
.hud-level { font-size: 12px; font-weight: 700; color: var(--ink-soft); }
.hud-time { font-size: 26px; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; line-height: 1.1; }
.hud-best { font-size: 12px; font-weight: 600; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.hud-buttons { display: flex; gap: 8px; pointer-events: auto; }
.icon-button { width: 44px; height: 44px; border: 0; border-radius: 50%; background: var(--card); backdrop-filter: blur(8px); box-shadow: 0 6px 20px rgba(35, 32, 31, 0.1); font-size: 18px; line-height: 1; }

.progress { position: relative; height: 10px; max-width: 520px; width: 100%; justify-self: center; border-radius: 10px; background: rgba(255, 252, 247, 0.6); box-shadow: inset 0 0 0 1px var(--line); }
.progress > i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; border-radius: inherit; background: var(--accent); }
.progress > b { position: absolute; top: 50%; left: 0; transform: translate(-50%, -58%) scaleX(-1); font-size: 20px; }
.progress-ticks span { position: absolute; top: -3px; width: 4px; height: 16px; margin-left: -2px; border-radius: 3px; background: rgba(35, 32, 31, 0.35); }
.progress-ticks span.is-passed { background: #3fbf6a; }
.progress-ticks span.is-finish { background: repeating-linear-gradient(#23201f 0 4px, #fff 4px 8px); width: 6px; margin-left: -3px; }

.toast { position: absolute; left: 50%; top: 22%; transform: translate(-50%, -8px) scale(0.96); padding: 10px 20px; border-radius: 999px; background: var(--card); backdrop-filter: blur(8px); font-size: 22px; font-weight: 800; letter-spacing: -0.01em; box-shadow: 0 10px 30px rgba(35, 32, 31, 0.16); opacity: 0; pointer-events: none; transition: opacity 0.2s, transform 0.25s cubic-bezier(0.2, 0.9, 0.3, 1.4); white-space: nowrap; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0) scale(1); }
.toast.is-bad { color: #b3261e; }
.toast.is-good { color: #1f8a4c; }

.start-hint { position: absolute; left: 50%; bottom: max(26px, env(safe-area-inset-bottom)); transform: translateX(-50%); margin: 0; padding: 10px 18px; border-radius: 999px; background: var(--card); backdrop-filter: blur(8px); font-weight: 700; box-shadow: 0 8px 24px rgba(35, 32, 31, 0.12); animation: bob 1.4s ease-in-out infinite; }
.start-hint[hidden] { display: none; }
@keyframes bob { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, -4px); } }

.touch { position: absolute; left: 0; right: 0; bottom: max(14px, env(safe-area-inset-bottom)); display: flex; justify-content: space-between; padding: 0 14px; pointer-events: none; }
.touch[hidden] { display: none; }
.touch-group { display: flex; gap: 12px; pointer-events: auto; }
.touch button { width: 76px; height: 76px; border: 0; border-radius: 50%; background: rgba(255, 252, 247, 0.72); backdrop-filter: blur(6px); font-size: 30px; font-weight: 800; box-shadow: 0 8px 22px rgba(35, 32, 31, 0.16); touch-action: none; }
.touch button.is-down { background: #fff; transform: scale(0.94); }
.touch .touch-gas { background: rgba(255, 90, 54, 0.85); color: #fff; }
.touch .touch-gas.is-down { background: var(--accent-dark); }

.panel { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(560px, calc(100% - 24px)); max-height: calc(100% - 24px); overflow-y: auto; padding: 24px 26px 22px; border-radius: 26px; background: rgba(255, 252, 247, 0.93); backdrop-filter: blur(12px); box-shadow: 0 24px 60px rgba(35, 32, 31, 0.22); }
.panel[hidden] { display: none; }
.panel--small { width: min(380px, calc(100% - 24px)); text-align: center; }
.eyebrow { margin: 0 0 4px; font-size: 12px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-dark); }
.panel h1 { margin: 0 0 6px; font-size: clamp(36px, 8vw, 52px); line-height: 1; letter-spacing: -0.03em; }
.panel h1 em { font-style: normal; color: var(--accent); }
.panel h2 { margin: 0 0 12px; font-size: 28px; letter-spacing: -0.02em; }
.panel-copy { margin: 0 0 16px; color: var(--ink-soft); line-height: 1.45; font-size: 15px; }

.level-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 12px; }
.level-card { position: relative; display: grid; gap: 2px; align-content: start; min-height: 86px; padding: 10px 10px 8px; border: 0; border-radius: 16px; background: #fff; text-align: left; box-shadow: 0 2px 0 var(--line), inset 0 0 0 1px var(--line); transition: transform 0.15s, box-shadow 0.15s; }
.level-card:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(35, 32, 31, 0.12), inset 0 0 0 2px var(--accent); }
.level-card:disabled { cursor: default; opacity: 0.5; background: rgba(255, 255, 255, 0.5); }
.level-card .num { font-size: 11px; font-weight: 800; color: var(--ink-soft); }
.level-card .name { font-size: 14px; font-weight: 800; line-height: 1.15; }
.level-card .card-stars { font-size: 13px; color: var(--gold); letter-spacing: 1px; }
.level-card .card-stars .off { color: rgba(35, 32, 31, 0.16); }
.level-card .best { font-size: 11px; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.level-card .swatch { position: absolute; top: 10px; right: 10px; width: 12px; height: 12px; border-radius: 4px; }

.menu-row { display: flex; gap: 8px; margin-bottom: 14px; }
.primary, .secondary, .ghost { padding: 12px 18px; border: 0; border-radius: 14px; font-weight: 800; font-size: 15px; transition: transform 0.12s, background-color 0.15s; }
.primary { background: var(--accent); color: #fff; box-shadow: 0 4px 0 var(--accent-dark); }
.primary:hover { background: #ff6b4a; }
.primary:active, .secondary:active { transform: translateY(2px); }
.secondary { background: #fff; box-shadow: 0 2px 0 var(--line), inset 0 0 0 1px var(--line); }
.secondary:hover { box-shadow: 0 2px 0 var(--line), inset 0 0 0 2px var(--accent); }
.ghost { background: transparent; color: var(--ink-soft); }
.menu-row .secondary { flex: 1; }
.panel-actions { display: grid; gap: 8px; margin-top: 8px; }
.panel-actions kbd { margin-left: 6px; }

.keys { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 6px 14px; margin: 0; padding: 12px 14px; border-radius: 14px; background: rgba(35, 32, 31, 0.04); font-size: 13px; }
.keys div { display: flex; align-items: center; gap: 8px; }
.keys dt { display: flex; gap: 3px; margin: 0; }
.keys dd { margin: 0; color: var(--ink-soft); font-weight: 600; }
.save-note { margin: 10px 0 0; font-size: 11px; color: var(--ink-soft); text-align: center; }

.stars { margin: -4px 0 10px; font-size: 40px; letter-spacing: 6px; color: var(--gold); }
.stars .off { color: rgba(35, 32, 31, 0.14); }
.finish-stats { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; margin: 0 0 8px; padding: 12px 16px; border-radius: 14px; background: rgba(35, 32, 31, 0.04); text-align: left; font-size: 14px; }
.finish-stats dt { color: var(--ink-soft); font-weight: 600; }
.finish-stats dd { margin: 0; font-weight: 800; text-align: right; font-variant-numeric: tabular-nums; }
.finish-stats .total { font-size: 18px; color: var(--ink); }
.finish-note { min-height: 1.2em; margin: 0 0 4px; font-weight: 800; color: #1f8a4c; }

@media (max-width: 560px) {
  .level-grid { grid-template-columns: repeat(2, 1fr); }
  .hud { grid-template-columns: auto auto; }
  .progress { grid-column: 1 / -1; grid-row: 2; }
  .keys { display: none; }
  .panel { padding: 20px 18px 18px; }
}
@media (pointer: coarse) {
  .keys { display: none; }
  .start-hint { bottom: calc(max(14px, env(safe-area-inset-bottom)) + 92px); }
}
@media (max-width: 400px) {
  .touch button { width: 66px; height: 66px; font-size: 26px; }
  .touch-group { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .start-hint { animation: none; }
  .toast { transition: opacity 0.2s; }
}