:root {
  --bg: #060b07;
  --card: #101713;
  --card-soft: #15201a;
  --text: #f0fff3;
  --muted: #91a298;
  --line: #25352b;
  --accent: #67d262;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #152119 0%, var(--bg) 56%);
  animation: app-fade-in 260ms ease-out;
}

.app {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  animation: rise-in 320ms ease-out both;
}

.brand h1 {
  margin: 0;
  font-size: 3rem;
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 0 26px #67d26244;
}

.brand p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.stats {
  display: flex;
  gap: 8px;
}

.stat-card {
  min-width: 84px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  text-align: right;
  transition: border-color 180ms ease, transform 180ms ease;
}

.stat-card span {
  display: block;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.stat-card strong {
  font-size: 1.26rem;
  display: inline-block;
}

.stat-card.pop {
  border-color: #3a4151;
}

.stat-card.pop strong {
  animation: stat-pop 220ms ease-out;
}

.game-shell {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  padding: 12px;
  display: grid;
  gap: 8px;
  box-shadow: 0 22px 56px #00000080;
  animation: rise-in 360ms 40ms ease-out both;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: end;
}

.dropdown-wrap {
  display: grid;
  gap: 5px;
  font-size: 0.75rem;
  color: var(--muted);
}

.dropdown {
  position: relative;
}

.dropdown-trigger,
.chip {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card-soft);
  color: #eaedf5;
  padding: 8px 12px;
  font: inherit;
  font-size: 0.86rem;
  transition:
    border-color 170ms ease,
    background-color 170ms ease,
    transform 120ms ease,
    box-shadow 170ms ease;
}

.dropdown-trigger {
  min-width: 100px;
  text-align: left;
  cursor: pointer;
}

.dropdown-trigger:hover,
.chip:hover {
  border-color: #3d5244;
  background: #1a2820;
}

.dropdown-trigger:active,
.chip:active {
  transform: translateY(1px) scale(0.99);
}

.dropdown-trigger::after {
  content: "▾";
  float: right;
  color: #99a2b3;
}

.dropdown-menu {
  list-style: none;
  margin: 5px 0 0;
  padding: 4px;
  position: absolute;
  z-index: 4;
  width: 100%;
  background: #121c16;
  border: 1px solid var(--line);
  border-radius: 10px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px) scale(0.98);
  filter: blur(4px);
  transition:
    opacity 140ms ease,
    transform 160ms ease,
    filter 160ms ease,
    visibility 0ms linear 160ms;
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  filter: blur(0);
  transition:
    opacity 140ms ease,
    transform 160ms ease,
    filter 160ms ease,
    visibility 0ms;
}

.dropdown-menu button {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: #e5e9f2;
  padding: 8px;
  border-radius: 7px;
  font: inherit;
  cursor: pointer;
  transition: background-color 120ms ease;
}

.dropdown-menu button:hover {
  background: #1f3025;
}

.chip {
  cursor: pointer;
}

.status {
  margin: 2px 2px 0;
  min-height: 18px;
  color: #a9afbc;
  font-size: 0.86rem;
  transition: opacity 150ms ease, transform 180ms ease;
}

.status.flash {
  animation: status-pulse 220ms ease-out;
}

#board {
  width: 100%;
  max-width: 560px;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  border: 1px solid #2d3240;
  background: #11131a;
  touch-action: none;
  justify-self: center;
  animation: board-in 300ms ease-out both;
}

.hint {
  margin: 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
}

.mobile-controls {
  display: none;
  gap: 7px;
  justify-items: center;
}

.touch-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.touch-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--card-soft);
  color: #d9deeb;
  font-size: 1.2rem;
  transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.touch-btn:active {
  transform: scale(0.95);
  background: #1c2230;
  border-color: #3b4353;
}

@keyframes app-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes board-in {
  from {
    opacity: 0;
    transform: scale(0.985);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes stat-pop {
  0% {
    transform: scale(0.9);
  }
  50% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes status-pulse {
  0% {
    opacity: 0.55;
    transform: translateY(1px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column-reverse;
  }

  .mobile-controls {
    display: grid;
  }

  .brand h1 {
    font-size: 2.4rem;
  }
}