:root {
  --bg-1: #f4efe6;
  --bg-2: #efe3d4;
  --ink: #2b2a27;
  --muted: #6e6b63;
  --accent: #b85b3f;
  --accent-2: #386b73;
  --card-w: 90px;
  --card-h: 126px;
  --overlap: 0.66;
  --stack-offset: 34px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Avenir Next", "PingFang SC", "Microsoft Yahei", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 20% 10%, #fff7ee 0%, #f5eadc 45%, #e8d9c6 100%);
  min-height: 100vh;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 40px;
}

.topbar {
  display: none;
}

.controls {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.controls.compact {
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  color: var(--muted);
}

select {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid #d1c6b7;
  background: #fffaf3;
  font-size: 14px;
}

.primary {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(184, 91, 63, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 18px rgba(184, 91, 63, 0.3);
}

.table {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 20px;
  align-items: start;
}

.hand-area {
  background: transparent;
  border-radius: 16px;
  padding: 18px 18px 26px;
  border: none;
  box-shadow: none;
  min-height: 360px;
  position: relative;
}

.level-badge {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.5px;
}

.hand {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 44px 10px 12px;
  min-height: calc(var(--card-h) + 120px);
}

.hand.guandan {
  padding-top: 64px;
}

.card {
  width: var(--card-w);
  height: var(--card-h);
  background-size: cover;
  background-position: center;
  border-radius: 6px;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  margin-left: calc(var(--card-w) * -1 * var(--overlap));
  position: relative;
  transition: transform 0.15s ease;
  cursor: pointer;
}

.card:first-child { margin-left: 0; }

.card.raised {
  transform: translateY(calc(var(--card-h) * -0.25));
}

.hand.columns {
  align-items: flex-end;
  gap: 0;
}

.hand.columns .column {
  position: relative;
  width: var(--card-w);
  height: calc(var(--card-h) + var(--stack-offset) * 3);
  margin-left: calc(var(--card-w) * -1 * var(--overlap));
}

.hand.columns .card {
  position: absolute;
  left: 0;
  bottom: calc(var(--stack-offset) * var(--stack-index));
  margin-left: 0;
}

.hand.columns .column:first-child {
  margin-left: 0;
}

.actions {
  background: #fffaf4;
  border-radius: 16px;
  padding: 18px;
  border: 1px solid #e1d3c2;
  box-shadow: 0 10px 24px rgba(62, 43, 27, 0.08);
  width: 220px;
}

.actions-title {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 12px;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 56px);
  gap: 12px;
  align-items: center;
  justify-items: center;
  grid-template-areas:
    ". up ."
    "left center right"
    ". down .";
}

.action-grid .spacer {
  width: 100%;
  height: 56px;
}

.hidden {
  display: none !important;
}

.area-up { grid-area: up; }
.area-left { grid-area: left; }
.area-right { grid-area: right; }
.area-down { grid-area: down; }
.area-center { grid-area: center; }

.icon-btn {
  width: 100%;
  height: 56px;
  border-radius: 12px;
  border: 1px solid #d9c8b5;
  background: #fff;
  cursor: pointer;
  font-size: 20px;
  color: var(--accent-2);
  box-shadow: inset 0 0 0 2px #f5ebdf;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.icon-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(56, 107, 115, 0.15);
}

.hint {
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    flex-wrap: wrap;
  }

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

  .actions {
    width: 100%;
  }
}