/* devoupgrade — тёмная тема, фиолетовый неон. весь текст строго в нижнем регистре. */

* {
  box-sizing: border-box;
  text-transform: lowercase; /* подстраховка правила «только нижний регистр» */
}

:root {
  --bg: #0b0913;
  --bg-panel: #14101f;
  --bg-panel-2: #1b1530;
  --purple: #a855f7;
  --purple-bright: #c084fc;
  --purple-dark: #6b21a8;
  --green: #34d399;
  --red: #f87171;
  --text: #e9e4f5;
  --text-dim: #9c94b5;
  --border: #2c2440;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

body {
  background-image:
    radial-gradient(circle at 20% 0%, rgba(168, 85, 247, 0.12), transparent 40%),
    radial-gradient(circle at 80% 100%, rgba(168, 85, 247, 0.08), transparent 40%);
}

a { color: var(--purple-bright); text-decoration: none; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(20, 16, 31, 0.7);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--purple-bright);
  text-shadow: 0 0 14px rgba(192, 132, 252, 0.55);
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav a {
  color: var(--text-dim);
  font-size: 14px;
  padding: 6px 10px;
  border-radius: 8px;
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--text); background: var(--bg-panel-2); }

.balance-pill {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
}
.balance-pill b { color: var(--purple-bright); }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.hero {
  text-align: center;
  padding: 80px 20px 40px;
}
.hero h1 {
  font-size: 44px;
  margin: 0 0 12px;
  color: var(--text);
  text-shadow: 0 0 28px rgba(168, 85, 247, 0.35);
}
.hero p {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 12px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, opacity .12s ease;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, var(--purple), var(--purple-dark));
  color: #fff;
  box-shadow: 0 0 22px rgba(168, 85, 247, 0.45);
}
.btn-primary:hover { box-shadow: 0 0 32px rgba(168, 85, 247, 0.7); }

.btn-secondary {
  background: var(--bg-panel-2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--purple); }

.btn-danger {
  background: rgba(248, 113, 113, 0.12);
  color: var(--red);
  border: 1px solid rgba(248, 113, 113, 0.4);
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  margin-bottom: 24px;
}

.panel h2 {
  margin-top: 0;
  font-size: 18px;
  color: var(--purple-bright);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}

.card {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  cursor: pointer;
  transition: transform .15s ease, border-color .15s ease;
  position: relative;
}
.card:hover { transform: translateY(-4px); border-color: var(--purple); }
.card.selected { border-color: var(--purple-bright); box-shadow: 0 0 18px rgba(168, 85, 247, 0.55); }
.card img { width: 100%; display: block; }
.card .meta { padding: 10px; font-size: 13px; }
.card .meta .name { font-weight: 600; margin-bottom: 4px; }
.card .meta .price { color: var(--text-dim); font-size: 12px; }
.card .count-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0,0,0,0.6);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
}

.rarity-trash { color: #9ca3af; }
.rarity-common { color: #d1d5db; }
.rarity-uncommon { color: #4ade80; }
.rarity-epic { color: #c084fc; }
.rarity-mystic { color: #f472b6; }
.rarity-legendary { color: #fbbf24; }

.form-row { display: flex; gap: 12px; align-items: center; margin: 12px 0; flex-wrap: wrap; }
input[type="number"], input[type="text"] {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
}
input:focus { outline: none; border-color: var(--purple); }

.hint { color: var(--text-dim); font-size: 13px; }
.error-text { color: var(--red); font-size: 13px; }
.success-text { color: var(--green); font-size: 13px; }

.code-box {
  background: var(--bg-panel-2);
  border: 1px dashed var(--purple);
  border-radius: 10px;
  padding: 14px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--purple-bright);
  text-align: center;
  margin-top: 10px;
}

/* --- страница апгрейда --- */

.upgrade-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
}
@media (max-width: 860px) {
  .upgrade-layout { grid-template-columns: 1fr; }
}

.upgrade-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 30px 10px;
}

.wheel-wrap {
  position: relative;
  width: 260px;
  height: 260px;
}

.wheel-track {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(var(--purple-dark) 0deg, var(--bg-panel-2) 0deg);
  position: relative;
  box-shadow: inset 0 0 30px rgba(0,0,0,0.5);
  transition: background 0.2s ease;
}

.wheel-pointer {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 12px solid transparent;
  border-right: 12px solid transparent;
  border-top: 18px solid var(--purple-bright);
  filter: drop-shadow(0 0 8px rgba(192, 132, 252, 0.8));
  z-index: 3;
}

.wheel-needle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 4px;
  height: 50%;
  background: linear-gradient(to top, var(--purple-bright), transparent);
  transform-origin: bottom center;
  transform: translate(-50%, -100%) rotate(0deg);
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(192, 132, 252, 0.9);
}

.wheel-center {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--purple);
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  color: var(--purple-bright);
  z-index: 2;
}

.wheel-wrap.win .wheel-track { animation: flash-win 0.9s ease-out; }
.wheel-wrap.lose .wheel-track { animation: flash-lose 0.9s ease-out; }

@keyframes flash-win {
  0% { box-shadow: 0 0 0px rgba(52, 211, 153, 0); }
  30% { box-shadow: 0 0 70px rgba(52, 211, 153, 0.9); }
  100% { box-shadow: 0 0 20px rgba(52, 211, 153, 0.25); }
}
@keyframes flash-lose {
  0% { box-shadow: 0 0 0px rgba(248, 113, 113, 0); }
  30% { box-shadow: 0 0 70px rgba(248, 113, 113, 0.9); }
  100% { box-shadow: 0 0 20px rgba(139, 30, 30, 0.3); }
}

.result-card {
  width: 160px;
  opacity: 0;
  transform: scale(0.7) translateY(10px);
  transition: opacity .5s ease, transform .5s ease;
}
.result-card.show { opacity: 1; transform: scale(1) translateY(0); }
.result-card img { width: 100%; border-radius: 12px; }

.burn {
  animation: burn-out 1s ease forwards;
}
@keyframes burn-out {
  0% { filter: brightness(1) saturate(1); opacity: 1; }
  60% { filter: brightness(0.4) saturate(2) hue-rotate(-30deg); }
  100% { filter: brightness(0.1) saturate(0); opacity: 0.15; transform: scale(0.9); }
}

.chance-presets { display: flex; gap: 8px; flex-wrap: wrap; margin: 10px 0; }
.chance-presets button {
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.chance-presets button.active,
.chance-presets button:hover {
  border-color: var(--purple);
  color: var(--purple-bright);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--purple);
}

.multiplier-display {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 6px;
}
.multiplier-display b { color: var(--purple-bright); font-size: 16px; }

footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  padding: 30px 0 10px;
}