@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: dark;
  --bg: #090d18;
  --panel: #111827;
  --panel-light: #182235;
  --text: #eef4ff;
  --muted: #95a4bd;
  --accent: #42f5c5;
  --danger: #ff5277;
  --border: #27334a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(ellipse at top, #17233c 0%, var(--bg) 60%);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}

button, select, input {
  font: inherit;
}

button, select {
  color: var(--text);
}

button {
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}

button:hover:not(:disabled) {
  transform: translateY(-2px);
}

button:active:not(:disabled) {
  transform: scale(0.97);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.app {
  width: min(1180px, 94%);
  margin: 0 auto;
  padding: 28px 0 36px;
}

.topbar, .panel-heading, .game-buttons, .setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.topbar {
  margin-bottom: 22px;
}

h1, h2, p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  letter-spacing: -1.5px;
}

h1 span {
  color: var(--accent);
}

h2 {
  font-size: 1rem;
  margin-bottom: 0;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.wallet {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  font-size: 1.2rem;
}

.wallet strong {
  color: #ffd166;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 13px 16px;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin-bottom: 7px;
}

.stat strong {
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.game-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(250px, 0.85fr);
  align-items: start;
  gap: 18px;
}

.game-column {
  min-width: 0;
}

.arena-wrap {
  padding: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 15px 55px #0004;
}

.arena {
  --arena-accent: #42f5c5;
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  min-height: 300px;
  max-height: 570px;
  overflow: hidden;
  border-radius: 12px;
  background: #0b1220;
  isolation: isolate;
}

.arena-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(#24365055 1px, transparent 1px),
    linear-gradient(90deg, #24365055 1px, transparent 1px);
  background-size: 28px 28px;
}

.theme-neon {
  --arena-accent: #42f5c5;
  background-color: #0b1220;
}

.theme-forest {
  --arena-accent: #8dff9b;
  background-color: #10251d;
}

.theme-ember {
  --arena-accent: #ff9b54;
  background-color: #281512;
}

.theme-forest .arena-grid {
  background-image:
    linear-gradient(#42694c55 1px, transparent 1px),
    linear-gradient(90deg, #42694c55 1px, transparent 1px);
}

.theme-ember .arena-grid {
  background-image:
    linear-gradient(#76403255 1px, transparent 1px),
    linear-gradient(90deg, #76403255 1px, transparent 1px);
}

.player, .block, .coin {
  position: absolute;
  z-index: 2;
  width: 5%;
  aspect-ratio: 1;
}

.player {
  left: 50%;
  top: 80%;
  transform: translate(-50%, -50%);
  border-radius: 7px;
  background: var(--arena-accent);
  box-shadow: 0 0 15px var(--arena-accent), 0 0 32px #42f5c555;
  border: 2px solid #ffffffbb;
  z-index: 4;
}

.skin-neon {
  background: #42f5c5;
  box-shadow: 0 0 15px #42f5c5, 0 0 32px #42f5c555;
}

.skin-sunset {
  background: #ff7a59;
  box-shadow: 0 0 15px #ff7a59, 0 0 32px #ff7a5955;
}

.skin-ice {
  background: #79caff;
  box-shadow: 0 0 15px #79caff, 0 0 32px #79caff55;
}

.skin-gold {
  background: #ffd166;
  box-shadow: 0 0 15px #ffd166, 0 0 32px #ffd16655;
}

.block {
  background: #ff5277;
  border: 1px solid #ffb0c0;
  border-radius: 5px;
  box-shadow: 0 0 12px #ff527755;
}

.block.side-block {
  background: #ff914d;
  border-color: #ffd0a8;
  box-shadow: 0 0 12px #ff914d55;
}

.coin {
  display: grid;
  place-items: center;
  width: 3.5%;
  min-width: 12px;
  border-radius: 50%;
  background: #ffd166;
  border: 2px solid #fff0a5;
  box-shadow: 0 0 13px #ffd16688;
  color: #684600;
  font-size: clamp(8px, 1.4vw, 13px);
  font-weight: 900;
}

.coin.rare {
  background: #d5a0ff;
  border-color: #f0d9ff;
  box-shadow: 0 0 17px #c17bff;
  color: #4a187a;
}

.shielded {
  outline: 3px solid #79caff;
  outline-offset: 5px;
  box-shadow: 0 0 20px #79caff, 0 0 38px #79caff66;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 18px;
  background: #060a14c9;
  backdrop-filter: blur(5px);
  text-align: center;
}

.overlay.hidden {
  display: none !important;
}

.overlay-card {
  width: min(360px, 100%);
  padding: 26px;
  background: #111827f2;
  border: 1px solid #34435e;
  border-radius: 18px;
}

.overlay-card h2 {
  font-size: 2rem;
  margin: 0 0 10px;
}

.overlay-card p:not(.eyebrow) {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.primary, .secondary, .danger {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
}

.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #061610;
}

.secondary {
  background: var(--panel-light);
}

.danger {
  color: #ff9eb3;
  border-color: #713047;
  background: #351827;
}

.game-buttons {
  flex-wrap: wrap;
  justify-content: flex-start;
  margin-top: 12px;
}

.difficulty-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.8rem;
}

select {
  padding: 9px 10px;
  background: var(--panel-light);
  border: 1px solid var(--border);
  border-radius: 9px;
}

.hint, .muted, .tiny {
  color: var(--muted);
}

.hint {
  font-size: 0.76rem;
  text-align: center;
  margin: 13px 0 0;
  line-height: 1.6;
}

.tiny {
  font-size: 0.75rem;
  line-height: 1.5;
  margin-bottom: 0;
}

.sidebar {
  display: grid;
  gap: 14px;
}

.panel {
  padding: 17px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 15px;
  min-width: 0;
}

.panel-heading {
  margin-bottom: 14px;
}

.panel-heading .muted {
  font-size: 0.68rem;
}

.panel > p {
  font-size: 0.83rem;
  line-height: 1.5;
  margin-bottom: 12px;
}

.full-width {
  width: 100%;
}

.inventory {
  display: grid;
  gap: 8px;
}

.inventory-item, .shop-item, .achievement {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0c1321;
}

.inventory-item {
  justify-content: space-between;
}

.inventory-name, .shop-description {
  min-width: 0;
}

.inventory-name strong, .shop-description strong {
  display: block;
  font-size: 0.8rem;
}

.inventory-name small, .shop-description small {
  display: block;
  color: var(--muted);
  font-size: 0.7rem;
  margin-top: 4px;
  line-height: 1.4;
}

.inventory-item button, .shop-item button {
  flex-shrink: 0;
  padding: 7px 9px;
  background: var(--panel-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.72rem;
  font-weight: 700;
}

.progress-track {
  height: 7px;
  overflow: hidden;
  border-radius: 99px;
  background: #263149;
  margin: 10px 0;
}

.progress-fill {
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 0.2s;
}

.achievements {
  display: grid;
  gap: 7px;
}

.achievement {
  padding: 8px 10px;
  font-size: 0.75rem;
}

.achievement.locked {
  opacity: 0.45;
}

.achievement span:first-child {
  font-size: 1rem;
}

.shop-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.shop-item {
  align-items: flex-start;
}

.shop-item .shop-icon {
  font-size: 1.4rem;
}

.shop-item .shop-description {
  flex: 1;
}

.shop-item button {
  margin-top: 8px;
}

.lower-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}

.setting-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.84rem;
}

.setting-row select {
  max-width: 58%;
}

.setting-row input {
  accent-color: var(--accent);
  width: 18px;
  height: 18px;
}

#customizeStatus {
  margin: 12px 0;
}

.mobile-controls {
  display: none;
  margin-top: 12px;
  gap: 8px;
  justify-items: center;
}

.mobile-controls button {
  width: 54px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel-light);
  font-size: 1.1rem;
  touch-action: none;
}

.horizontal-controls {
  display: flex;
  gap: 8px;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  padding-top: 24px;
}

@media (max-width: 850px) {
  .game-layout, .lower-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .arena {
    min-height: 280px;
  }
}

@media (max-width: 560px) {
  .app {
    width: 94%;
    padding-top: 18px;
  }

  .stats {
    gap: 7px;
  }

  .stat {
    padding: 10px;
  }

  .stat strong {
    font-size: 1.1rem;
  }

  .stat span {
    font-size: 0.7rem;
  }

  .sidebar {
    grid-template-columns: 1fr;
  }

  .shop-grid {
    grid-template-columns: 1fr;
  }

  .mobile-controls {
    display: grid;
  }

  .arena {
    min-height: 250px;
  }

  .wallet {
    padding: 10px;
  }

  .game-buttons {
    gap: 8px;
  }

  .difficulty-label {
    width: 100%;
    justify-content: space-between;
  }
}