:root {
  /* Grid tracks */
  --side-col: clamp(100px, min(12vw, 16vh), 200px);
  --opponent-row: clamp(120px, min(14vw, 14vh), 200px);
  --meld-row: clamp(50px, min(6vw, 8vh), 90px);
  --hand-row: clamp(180px, min(22vw, 28vh), 300px);

  /* Card sizes — card-w < 19vh so card-h fits in hand-row */
  --card-w: clamp(100px, min(10vw, 17vh), 160px);
  --card-h: calc(var(--card-w) * 1.4375);
  /* small-card-w < 9vh so small-card-h fits in opponent-row */
  --small-card-w: clamp(60px, min(6.5vw, 8vh), 100px);
  --small-card-h: calc(var(--small-card-w) * 1.43);
  /* meld-clip-w < 3.5vh so meld-clip-h fits in meld-row */
  --meld-clip-w: clamp(22px, min(2.2vw, 3.5vh), 35px);
  --meld-clip-h: calc(var(--meld-clip-w) * 2);

  /* Pot sizing */
  --pot-w: clamp(70px, min(7vw, 10vh), 110px);
  --pot-h: calc(var(--pot-w) * 1.4545);

  /* Spacing */
  --center-gap: clamp(15px, min(2vw, 3vh), 30px);
  --meld-gap: clamp(6px, min(0.8vw, 1.2vh), 12px);

  /* Glow inset — scales with card size */
  --glow-inset: clamp(8px, min(1vw, 1.5vh), 15px);

  /* Rotated card overflow: (smallH - smallW) / 2 */
  --rotate-overflow: calc((var(--small-card-h) - var(--small-card-w)) / 2);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #1a1a1a;
}

/* ── Table Grid ── */
#table {
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-columns: var(--side-col) 1fr var(--side-col);
  grid-template-rows: var(--opponent-row) var(--meld-row) 1fr var(--meld-row) var(--hand-row);
  background: radial-gradient(ellipse at center, #2d7a3a 0%, #1b5e26 50%, #0f3d18 100%);
  border: none;
  box-shadow: inset 0 0 80px rgba(0,0,0,0.4);
}

.zone {
  position: relative;
  overflow: visible;
}

/* Grid placement */
#player-north {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: calc(var(--glow-inset) + 3px);
}

#melds-north {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  align-items: flex-end;
  gap: var(--meld-gap);
  z-index: 1;
}

#player-west {
  grid-column: 1;
  grid-row: 3;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding-left: calc(var(--glow-inset) + 3px);
}

#center-area {
  grid-column: 2;
  grid-row: 3;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--center-gap);
  position: relative;
}

#player-east {
  grid-column: 3;
  grid-row: 3;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-right: calc(var(--glow-inset) + 3px);
}

#melds-south {
  grid-column: 2;
  grid-row: 4;
  display: flex;
  align-items: center;
  gap: var(--meld-gap);
}

#player-south {
  grid-column: 2;
  grid-row: 5;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ── Cards ── */
.card {
  width: var(--card-w);
  height: var(--card-h);
  border-radius: 10px;
  box-shadow: 1px 2px 4px rgba(0,0,0,0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  user-select: none;
  -webkit-user-drag: none;
  image-rendering: auto;
}

/* ── Human Hand (south) ── */
#player-south {
  padding: 0 40px;
  align-items: flex-end;
  padding-bottom: calc(var(--glow-inset) + 3px);
}

.hand-container {
  position: relative;
  height: calc(var(--card-h) + 20px);
  display: flex;
  justify-content: center;
}

.hand-card {
  position: absolute;
  cursor: pointer;
  bottom: 0;
}

.hand-card:hover {
  transform: translateY(-24px);
  box-shadow: 2px 4px 8px rgba(0,0,0,0.5);
}

.hand-card.selected {
  transform: translateY(-32px);
  box-shadow: 0 0 10px 3px rgba(255,215,0,0.7);
}

.hand-card.selected:hover {
  transform: translateY(-32px);
}

/* ── Opponent Hands ── */
.opponent-container {
  position: relative;
}

.opponent-card {
  position: absolute;
}

/* West: vertical, rotated clockwise */
#player-west .opponent-card {
  transform: rotate(90deg);
}

/* East: vertical, rotated counter-clockwise */
#player-east .opponent-card {
  transform: rotate(-90deg);
}

/* ── Piles ── */
.pile {
  position: relative;
  width: var(--card-w);
  height: var(--card-h);
}

.pile .card {
  position: absolute;
  top: 0;
  left: 0;
}

.pile.clickable {
  cursor: pointer;
}

.pile.clickable::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 12px;
  border: 2px solid rgba(255,215,0,0.6);
  box-shadow: 0 0 20px rgba(255,215,0,0.3), inset 0 0 20px rgba(255,215,0,0.15);
  animation: pulse-border-yellow 1.5s ease-in-out infinite;
  pointer-events: none;
  z-index: 10;
}

.pile.clickable-pickup::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 12px;
  border: 2px solid rgba(255,60,60,0.6);
  box-shadow: 0 0 20px rgba(255,60,60,0.3), inset 0 0 20px rgba(255,60,60,0.15);
  animation: pulse-border-red 1.5s ease-in-out infinite;
  pointer-events: none;
  z-index: 10;
}

@keyframes pulse-border-yellow {
  0%, 100% { border-color: rgba(255,215,0,0.3); }
  50% { border-color: rgba(255,215,0,0.9); }
}

@keyframes pulse-border-red {
  0%, 100% { border-color: rgba(255,60,60,0.3); }
  50% { border-color: rgba(255,60,60,0.9); }
}

.pot {
  width: var(--pot-w);
  height: var(--pot-h);
}

.pot .card {
  width: var(--pot-w);
  height: var(--pot-h);
}

/* ── Melds ── */
.melds-zone {
  overflow-x: auto;
  overflow-y: hidden;
  flex-wrap: nowrap;
}

.melds-zone::before,
.melds-zone::after {
  content: '';
  flex: 1;
}

.meld-group {
  display: flex;
  flex-shrink: 0;
  position: relative;
  height: var(--meld-clip-h);
  margin: 0 var(--meld-gap);
  align-items: flex-start;
}

.meld-group .meld-card-clip {
  width: var(--meld-clip-w);
  height: var(--meld-clip-h);
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 1px 1px 3px rgba(0,0,0,0.4);
  margin-left: -2px;
  flex-shrink: 0;
}

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

.meld-group .meld-card-clip img {
  width: calc(var(--meld-clip-w) * 5.54);
  height: calc(var(--meld-clip-h) * 3.99);
  display: block;
  border-radius: 0;
  box-shadow: none;
}

.meld-placeholder {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(var(--meld-clip-w) * 1.37);
  height: var(--meld-clip-h);
  border-radius: 8px;
  border: 2px solid rgba(255,215,0,0.6);
  box-shadow: 0 0 20px rgba(255,215,0,0.3), inset 0 0 20px rgba(255,215,0,0.15);
  animation: pulse-border-yellow 1.5s ease-in-out infinite;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
  color: rgba(255,215,0,0.7);
  z-index: 10;
}

.meld-placeholder:hover {
  box-shadow: 0 0 30px rgba(255,215,0,0.5), inset 0 0 25px rgba(255,215,0,0.25);
  color: rgba(255,215,0,1);
}

.meld-group.clickable-meld {
  cursor: pointer;
  border-radius: 6px;
}

.meld-group.clickable-meld:hover {
  outline: 2px solid rgba(0,200,255,0.7);
}

.meld-group.buraco-clean {
  box-shadow: 0 0 12px 3px rgba(255,215,0,0.6);
}

.meld-group.buraco-dirty {
  box-shadow: 0 0 12px 3px rgba(192,192,192,0.5);
}

/* ── Current Player Highlight ── */
.active-player {
  position: relative;
  isolation: isolate;
}

.active-player::before {
  content: '';
  position: absolute;
  inset: calc(-1 * var(--glow-inset));
  border-radius: 18px;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.10) 40%, transparent 70%);
  box-shadow: inset 0 0 40px rgba(255,255,255,0.3), 0 0 30px rgba(255,255,255,0.2);
  pointer-events: none;
  z-index: -1;
}

.hand-container.active-player::before {
  top: 5px;
}

#player-west .opponent-container.active-player::before,
#player-east .opponent-container.active-player::before {
  top: calc(var(--rotate-overflow) - var(--glow-inset));
  bottom: calc(-1 * var(--glow-inset) - var(--rotate-overflow));
}

#player-north .opponent-container.active-player::before {
  top: calc(-1 * var(--glow-inset));
  bottom: calc(-0.7 * var(--glow-inset));
}

/* ── UI Overlay ── */
#ui-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  pointer-events: none;
  z-index: 500;
}

#status-bar {
  display: none;
}

#action-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 4px;
  pointer-events: auto;
}

.action-btn {
  padding: 8px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.action-btn:active {
  transform: scale(0.96);
}

.action-btn.hidden {
  display: none;
}

/* ── Score overlay ── */
#score-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

#score-overlay .score-card {
  background: #2c2c2c;
  color: #fff;
  border-radius: 12px;
  padding: 30px 40px;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
}

#score-overlay h2 {
  margin-bottom: 16px;
  font-size: 22px;
  color: #e6a817;
}

#score-overlay table {
  margin: 12px auto;
  border-collapse: collapse;
}

#score-overlay td, #score-overlay th {
  padding: 6px 16px;
  border-bottom: 1px solid #444;
}

#score-overlay button {
  margin-top: 18px;
  padding: 10px 30px;
  border: none;
  border-radius: 6px;
  background: #e6a817;
  color: #1a1a1a;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

#score-overlay button:hover {
  background: #ffc107;
}

/* ── Flying Card Animations ── */
.flying-card {
  position: fixed;
  z-index: 2000;
  pointer-events: none;
}

.flying-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
}

.flying-card-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 10px;
  box-shadow: 2px 4px 8px rgba(0,0,0,0.5);
}

.flying-card-front {
  transform: rotateY(180deg);
}