:root {
  --bg: #f7f0e8;
  --bg-deep: #f2e3d5;
  --ink: #1b1b1b;
  --muted: #6b5f56;
  --accent: #e76f51;
  --accent-2: #2a9d8f;
  --accent-3: #f4a261;
  --board: #fef8f2;
  --board-edge: #eadbc8;
  --cell: #f3e7d8;
  --cell-border: #e5d6c2;
  --danger: #d1495b;
  --good: #6dbf73;
  --shadow: 0 20px 60px rgba(44, 30, 16, 0.18);
  --ring: 0 0 0 3px rgba(231, 111, 81, 0.25);
  --board-width: clamp(280px, 60vw, 520px);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #fff5ea 0%, var(--bg) 45%, var(--bg-deep) 100%);
  min-height: 100vh;
  overflow-x: hidden;
  user-select: none;
}

h1,
h2,
h3 {
  font-family: "DM Serif Display", "Times New Roman", serif;
  margin: 0;
}

p {
  margin: 0;
}

.app {
  width: min(1100px, 92vw);
  margin: 32px auto 40px;
  display: grid;
  gap: 24px;
}

.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  width: var(--board-width);
  margin: 0 auto;
}

.tag {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-2);
}

.subtitle {
  margin-top: 8px;
  max-width: 520px;
  color: var(--muted);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
}

.stat-line strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin-left: 6px;
}

.board-panel {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--board-width);
  margin: 0 auto;
}

.board {
  width: 100%;
  aspect-ratio: 1;
  background: var(--board);
  border-radius: 24px;
  border: 2px solid var(--board-edge);
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
  padding: 10px;
  box-shadow: var(--shadow);
  touch-action: none;
}

.cell {
  background: var(--cell);
  border-radius: 10px;
  border: 1px solid var(--cell-border);
  position: relative;
  overflow: hidden;
  transition: transform 0.12s ease;
}

.cell.filled {
  background: var(--cell-fill, var(--accent));
  border-color: rgba(0, 0, 0, 0.08);
}

.cell.preview-valid {
  outline: 2px solid rgba(42, 157, 143, 0.6);
  transform: scale(0.98);
}

.cell.preview-invalid {
  outline: 2px solid rgba(209, 73, 91, 0.6);
  transform: scale(0.98);
}

.cell.preview-line {
  background: #f7efe6;
}

.cell.filled.preview-line {
  background: color-mix(in srgb, var(--cell-fill) 75%, #fff);
}

.cell.clearing::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: var(--cell-fill, var(--accent));
  animation: burst 0.3s ease-out forwards;
}

@keyframes burst {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  40% {
    transform: scale(1.12);
    opacity: 0.85;
  }
  100% {
    transform: scale(0.2);
    opacity: 0;
  }
}

.score-pop {
  position: absolute;
  top: -8px;
  right: 12px;
  font-weight: 700;
  font-size: 18px;
  color: var(--accent);
  opacity: 0;
  pointer-events: none;
}

.score-pop.show {
  animation: float 1s ease forwards;
}

@keyframes float {
  0% {
    opacity: 0;
    transform: translateY(0);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-22px);
  }
}

.hand {
  background: rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  padding: 20px;
  border: 1px solid var(--board-edge);
  box-shadow: var(--shadow);
  width: var(--board-width);
  margin: 0 auto;
}

.hand-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.hand-header h2 {
  margin-bottom: 6px;
}

.hand-header p {
  color: var(--muted);
}

.pieces {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  margin: 0 auto;
}

.piece {
  background: #fff8ef;
  border-radius: 16px;
  border: 1px dashed rgba(0, 0, 0, 0.08);
  padding: 8px;
  min-height: 96px;
  display: grid;
  place-items: center;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  touch-action: none;
  user-select: none;
}

.piece.empty {
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}

.piece:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.piece.dragging {
  opacity: 0.35;
  transform: scale(0.98);
}

.piece-grid {
  display: grid;
  gap: 1px;
}

.piece-cell {
  width: var(--cell-size, 22px);
  height: var(--cell-size, 22px);
  border-radius: 6px;
  background: var(--piece-color, var(--accent));
  border: none;
}

.ghost-piece {
  position: fixed;
  z-index: 10;
  pointer-events: none;
  opacity: 0.8;
}

.ghost {
  background: transparent;
  border: 1px solid var(--accent-2);
  color: var(--accent-2);
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ghost.danger {
  border-color: var(--danger);
  background: var(--danger);
  color: #fff;
}

.ghost.danger:hover {
  box-shadow: 0 0 0 3px rgba(209, 73, 91, 0.25);
}

.ghost.light {
  background: #fff;
  border-color: var(--board-edge);
  color: var(--ink);
}

.ghost.light:hover {
  box-shadow: 0 0 0 3px rgba(234, 219, 200, 0.6);
}

.ghost:hover {
  transform: translateY(-1px);
  box-shadow: var(--ring);
}

button {
  font-family: "Space Grotesk", system-ui, sans-serif;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(31, 23, 15, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 20;
}

.modal.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: #fffaf3;
  padding: 28px 32px;
  border-radius: 22px;
  border: 1px solid var(--board-edge);
  box-shadow: var(--shadow);
  text-align: center;
  width: min(320px, 88vw);
}

.modal-card h3 {
  margin-bottom: 8px;
}

.modal-card p {
  color: var(--muted);
  margin-bottom: 18px;
}

.modal-actions button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 10px 24px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}

.modal-actions button:hover {
  transform: translateY(-1px);
}

.bg-shape {
  position: fixed;
  border-radius: 999px;
  opacity: 0.35;
  filter: blur(0px);
  z-index: -1;
}

.bg-shape-1 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, #f4a261 0%, rgba(244, 162, 97, 0.1) 70%);
  top: -140px;
  right: -120px;
}

.bg-shape-2 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, #2a9d8f 0%, rgba(42, 157, 143, 0.1) 70%);
  bottom: -140px;
  left: -100px;
}

.bg-shape-3 {
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, #e9c46a 0%, rgba(233, 196, 106, 0.12) 70%);
  top: 35vh;
  left: 10vw;
}

@media (max-width: 900px) {
  .stats {
    grid-template-columns: 1fr;
    gap: 6px;
    justify-items: start;
  }

  .hand-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .board {
    width: 92vw;
  }

  .stat {
    padding: 10px 12px;
  }
}