:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #273449;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #ef4444;
  --accent-strong: #dc2626;
  --border: rgba(148, 163, 184, 0.22);
  --radius: 12px;
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.45);
  --shadow-soft: 0 4px 14px rgba(2, 6, 23, 0.35);
  --t: 200ms;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

/* Header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px max(16px, env(safe-area-inset-right)) 8px max(16px, env(safe-area-inset-left));
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 28px;
  height: 28px;
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 40px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font: 600 0.95rem/1 var(--font);
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: background-color var(--t), transform var(--t), border-color var(--t), box-shadow var(--t);
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  background: var(--surface-2);
  border-color: rgba(148, 163, 184, 0.4);
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn:focus-visible,
.play:focus-visible,
.footer a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
}

.btn-primary:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.btn-icon {
  padding: 0 10px;
}

.btn-lang {
  font-weight: 800;
  letter-spacing: 0.04em;
}

.icon {
  width: 20px;
  height: 20px;
}

#btn-mute .icon-muted,
#btn-mute[aria-pressed="true"] .icon-sound {
  display: none;
}

#btn-mute[aria-pressed="true"] .icon-muted {
  display: block;
}

/* Play area */
.stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
  margin: 0 8px;
  overflow: hidden;
  border-radius: var(--radius);
  background: #1e1b4b;
  box-shadow: var(--shadow);
}

.play {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: grab;
}

.play.is-aiming {
  cursor: grabbing;
}

/* HUD */
.hud {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 0 12px;
  border-radius: var(--radius);
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  font-variant-numeric: tabular-nums;
  backdrop-filter: blur(6px);
}

.pill strong {
  font-weight: 800;
}

.pill-sub {
  color: var(--muted);
  font-size: 0.85rem;
}

.pill-ammo {
  gap: 4px;
}

.ammo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #d6d3d1, #78716c 55%, #44403c);
  transition: opacity var(--t), transform var(--t);
}

.ammo-dot.is-used {
  opacity: 0.22;
  transform: scale(0.75);
}

.goblin-dot {
  width: 14px;
  height: 14px;
  border-radius: 50% 50% 45% 45%;
  background: radial-gradient(circle at 35% 35%, #d9f99d, #84cc16 55%, #3f6212);
}

.hud-restart {
  margin-left: auto;
  pointer-events: auto;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(6px);
}

/* Hint */
.hint {
  position: absolute;
  left: 50%;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: max-content;
  max-width: calc(100% - 24px);
  margin: 0;
  padding: 8px 14px;
  transform: translateX(-50%);
  border-radius: var(--radius);
  background: rgba(15, 23, 42, 0.72);
  color: var(--text);
  font-size: 0.9rem;
  text-align: center;
  pointer-events: none;
  transition: opacity 250ms;
}

.hint-keys {
  display: none;
  color: var(--muted);
  font-size: 0.8rem;
}

.hint.is-hidden {
  opacity: 0;
}

/* Overlays */
.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t), visibility var(--t);
  overflow-y: auto;
}

.overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.card {
  width: min(520px, 100%);
  padding: 20px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: translateY(8px) scale(0.98);
  transition: transform var(--t);
}

.overlay.is-open .card {
  transform: none;
}

.card h2 {
  margin: 0;
  font-size: 1.3rem;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.muted {
  color: var(--muted);
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.level-card {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-height: 84px;
  padding: 10px 12px;
  text-align: left;
  line-height: 1.2;
}

.level-num {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.level-name {
  font-size: 1rem;
  font-weight: 700;
}

.level-stars {
  color: #475569;
  font-size: 1.05rem;
  letter-spacing: 2px;
}

.level-stars .is-on,
.stars .star.is-on {
  color: #facc15;
}

.level-card.is-current {
  border-color: var(--accent);
}

.card-result {
  width: min(400px, 100%);
  text-align: center;
}

.stars {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 14px 0 6px;
  font-size: 2.6rem;
  line-height: 1;
}

.stars .star {
  color: #334155;
  transform: scale(0.6);
  transition: transform 250ms cubic-bezier(0.3, 1.6, 0.5, 1), color 250ms;
}

.stars .star.is-on {
  transform: scale(1);
}

.stars .star:nth-child(2) {
  transition-delay: 120ms;
}

.stars .star:nth-child(3) {
  transition-delay: 240ms;
}

.result-score {
  margin: 8px 0 2px;
  font-size: 1.2rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

#result-best {
  margin: 0;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

/* Footer */
.footer {
  padding: 2px 16px 4px;
  text-align: center;
  font-size: 0.85rem;
}

.footer a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 8px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--t);
}

.footer a:hover {
  color: var(--text);
}

@media (hover: hover) and (pointer: fine) {
  .hint-keys {
    display: block;
  }
}

@media (max-width: 520px) {
  .pill-level .pill-sub,
  .hud-restart .btn-text {
    display: none;
  }

  .hud {
    gap: 4px;
  }

  .pill {
    gap: 4px;
    padding: 0 8px;
  }

  .pill-sub {
    font-size: 0.78rem;
  }

  .ammo-dot {
    width: 10px;
    height: 10px;
  }

  .brand {
    font-size: 1.2rem;
  }

  .level-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0ms !important;
    transition-delay: 0ms !important;
    animation: none !important;
  }
}

[hidden] {
  display: none !important;
}