/* Fixed CSS with Leaderboard Name Column Fix */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Symbols:wght@400;700&display=swap');
@import url('https://fonts.cdnfonts.com/css/visby-round');

:root {
  --bg: #1a2a32;
  --text: #ecf0f1;
  --highlight: #3498db;
  --valid-drop-color: rgba(46, 204, 113, 0.4);
  --drop-glow: 0 0 20px rgba(46, 204, 113, 0.6);
  --radius: 8px;
  --w: 100px;
  --h: 140px;
  --offset: 45px;
  --transition: all 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
  --gap: 20px;
}

/* Tablet landscape and smaller */
@media (max-width: 1024px) {
  :root {
    --w: 80px;
    --h: 112px;
    --offset: 35px;
    --gap: 15px;
  }
}

/* Tablet portrait */
@media (max-width: 768px) {
  :root {
    --w: 11vw;
    --h: calc(11vw * 1.4);
    --offset: calc(11vw * 0.7);
    --gap: 1.5vw;
    --radius: 6px;
  }
}

/* Mobile landscape */
@media (max-width: 768px) and (orientation: landscape) {
  :root {
    --w: 9vh;
    --h: calc(9vh * 1.4);
    --offset: calc(9vh * 0.7);
    --gap: 1vh;
  }
}

/* Small mobile portrait */
@media (max-width: 480px) {
  :root {
    --w: 12vw;
    --h: calc(12vw * 1.4);
    --offset: calc(12vw * 0.65);
    --gap: 1.5vw;
    --radius: 4px;
  }
}

/* Very small screens */
@media (max-width: 360px) {
  :root {
    --w: 13vw;
    --h: calc(13vw * 1.4);
    --offset: calc(13vw * 0.6);
    --gap: 1vw;
  }
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Visby Round CF', sans-serif;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  overflow-x: hidden;
}

@media (max-width: 768px) {
  body {
    padding: 8px;
  }
}

@media (max-width: 768px) and (orientation: landscape) {
  body {
    padding: 5px;
  }
}


.container {
  display: flex;
  width: 100%;
  max-width: 1400px;
  gap: 30px;
  align-items: flex-start;
}

.game-container {
  flex: 1;
  min-width: 0;
  z-index: 1;
}

#controls {
  width: 100%;
  max-width: 900px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  #controls {
    gap: 8px;
    margin-bottom: 15px;
  }
}

#controls button {
  background: var(--highlight);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: var(--transition);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

#controls button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

@media (max-width: 768px) {
  #controls button {
    padding: 12px 16px;
    font-size: 13px;
    min-height: 44px;
  }
}

#controls .stats {
  margin-left: auto;
  display: flex;
  gap: 20px;
  font-size: 14px;
}

@media (max-width: 768px) {
  #controls .stats {
    font-size: 13px;
    gap: 12px;
    width: 100%;
    justify-content: center;
    margin-left: 0;
  }
}

.board {
  width: 100%;
  max-width: 900px;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

@media (max-width: 1100px) {
  .board {
    margin-bottom: 50px;
  }
}

@media (max-width: 768px) {
  .board {
    margin-bottom: 60px;
  }
}

@media (max-width: 768px) and (orientation: landscape) {
  .board {
    margin-bottom: 40px;
  }
}

.top-row {
  display: flex;
  align-items: flex-start;
  gap: var(--gap);
  margin-bottom: 28px;
  width: 100%;
  max-width: 900px;
}

@media (max-width: 768px) {
  .top-row {
    margin-bottom: 20px;
  }
}

@media (max-width: 480px) {
  .top-row {
    margin-bottom: 15px;
  }
}

.spacer {
  flex: 1;
}

.foundations {
  display: flex;
  gap: var(--gap);
}

.tableau {
  display: flex;
  gap: var(--gap);
  width: 100%;
  max-width: 900px;
  justify-content: center;
}

@media (max-width: 1100px) {
  .tableau {
    margin-bottom: 80px;
  }
}

@media (max-width: 768px) {
  .tableau {
    margin-bottom: 100px;
  }
}

@media (max-width: 480px) {
  .tableau {
    margin-bottom: 120px;
  }
}

.pile {
  position: relative;
  width: var(--w);
  min-height: var(--h);
  transition: var(--transition);
  overflow: visible;
}

@media (max-width: 768px) {
  .pile {
    min-height: calc(var(--h) + 10px);
  }
}

.pile.column {
  padding-bottom: 40px;
  /* Hitbox size for a full stack: card height + (12 cards * offset) */
  min-height: calc(var(--h) + (var(--offset) * 12));
  max-height: none;
  overflow: visible;
}

@media (max-width: 1100px) {
  .pile.column {
    padding-bottom: 100px;
  }
}

@media (max-width: 768px) {
  .pile.column {
    padding-bottom: 120px;
  }
}

@media (max-width: 480px) {
  .pile.column {
    padding-bottom: 140px;
  }
}

@media (max-width: 768px) and (orientation: landscape) {
  .pile.column {
    padding-bottom: 80px;
  }
}

.foundation {
  background: rgba(255, 255, 255, 0.1);
  border: 2px dashed rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
}

.card {
  width: var(--w);
  height: var(--h);
  border-radius: var(--radius);
  position: absolute;
  background: white;
  border: 2px solid rgba(0, 0, 0, 0.8);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  cursor: grab;
  padding: 0;
  font-family: 'Visby Round CF', sans-serif;
  transition: var(--transition);
  top: 0;
  left: 0;
  z-index: 1;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  /* Performance optimizations */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.card.flying {
  position: fixed !important;
  z-index: 10000 !important;
  pointer-events: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 30px rgba(52, 152, 219, 0.8);
  /* Use transform for GPU acceleration - faster timing */
  transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              opacity 0.25s ease;
  will-change: transform, opacity;
  transform-origin: center center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.card.selected {
  transform: translate3d(0, -10px, 0);
  box-shadow: 0 10px 20px rgba(52, 152, 219, 0.6), 0 0 20px rgba(52, 152, 219, 0.4);
  border-color: #3498db;
  z-index: 1000;
  will-change: transform;
}

@media (max-width: 768px) {
  .card {
    border-width: 1.5px;
  }
}

.card.red {
  color: #e63946;
}

.card.black {
  color: #333;
}

.card-corner {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
  z-index: 2;
  background: rgba(255, 255, 255, 0.9);
  padding: 2px 4px;
  border-radius: 4px;
}

.card-corner.tl {
  top: 4px;
  left: 4px;
}

.card-corner.br {
  bottom: 4px;
  right: 4px;
  transform: rotate(180deg);
}

.card-corner .card-value {
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}

.card-corner .card-suit {
  font-family: 'Noto Sans Symbols', sans-serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  margin-top: -4px;
}

@media (max-width: 1024px) {
  .card-corner .card-value {
    font-size: 18px;
  }
  
  .card-corner .card-suit {
    font-size: 22px;
    margin-top: -3px;
  }
}

@media (max-width: 768px) {
  .card-corner .card-value {
    font-size: 16px;
  }
  
  .card-corner .card-suit {
    font-size: 20px;
    margin-top: -3px;
  }
  
  .card-corner {
    padding: 2px 3px;
  }
}

@media (max-width: 480px) {
  .card-corner .card-value {
    font-size: 14px;
  }
  
  .card-corner .card-suit {
    font-size: 18px;
    margin-top: -2px;
  }
  
  .card-corner {
    padding: 1px 2px;
  }
}

@media (max-width: 360px) {
  .card-corner .card-value {
    font-size: 12px;
  }
  
  .card-corner .card-suit {
    font-size: 16px;
    margin-top: -2px;
  }
  
  .card-corner {
    padding: 1px 2px;
  }
}

.card-center {
  display: none !important;
}

.card.back,
.card.face-down {
  background-color: #c62828;
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.3) 2px, transparent 3px),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.3) 2px, transparent 3px),
    linear-gradient(135deg, transparent 48%, rgba(0, 0, 0, 0.2) 49%, rgba(0, 0, 0, 0.2) 51%, transparent 52%),
    linear-gradient(45deg, transparent 48%, rgba(0, 0, 0, 0.2) 49%, rgba(0, 0, 0, 0.2) 51%, transparent 52%);
  background-size: 40px 40px;
  background-position: center;
  box-shadow: 
    inset 0 0 0 2px #fff,
    inset 0 0 0 6px #b71c1c;
  border: 2px solid rgba(0, 0, 0, 0.8);
  cursor: default;
}

@media (max-width: 768px) {
  .card.back,
  .card.face-down {
    background-size: 25px 25px;
    box-shadow: 
      inset 0 0 0 1.5px #fff,
      inset 0 0 0 4px #b71c1c;
  }
}

.dragging {
  opacity: 0.95;
  transform: scale3d(1.05, 1.05, 1) rotate(1deg);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3), 0 0 15px rgba(255, 255, 255, 0.8);
  z-index: 10000;
  transition: var(--transition);
  will-change: transform, opacity;
  backface-visibility: hidden;
}

.card.dragging {
  opacity: 0.7 !important;
}

.valid-drop {
  position: relative;
  animation: pulse-glow 1.5s infinite;
}

.valid-drop::before {
  content: '';
  position: absolute;
  top: 0;
  left: -4px;
  right: -4px;
  /* Dynamic height based on card count - set by JavaScript */
  height: var(--drop-zone-height, calc(var(--h) + 20px));
  border: 2px dashed var(--valid-drop-color);
  border-radius: calc(var(--radius) + 4px);
  pointer-events: none;
  box-shadow: var(--drop-glow);
  background: rgba(46, 204, 113, 0.05);
}

@media (max-width: 768px) {
  .valid-drop::before {
    border-width: 3px;
    background: rgba(46, 204, 113, 0.15);
  }
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; }
}


.dragging::before {
  content: attr(data-stack-size);
  position: absolute;
  top: -12px;
  right: -12px;
  background: var(--highlight);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
  z-index: 101;
}

.card:not(.face-down):not(.back)[draggable="true"]:hover {
  transform: translate3d(0, -5px, 0);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
  z-index: 100;
  will-change: transform;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.hidden {
  display: none;
}

.overlay .message {
  background: #2c3e50;
  padding: 30px;
  border-radius: var(--radius);
  text-align: center;
  max-width: 400px;
  width: 90%;
  animation: fade-in 0.3s ease-out;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.overlay h2 {
  margin-bottom: 15px;
  color: #fff;
}

.overlay p {
  margin-bottom: 5px;
  color: #ecf0f1;
}

.overlay input {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border-radius: var(--radius);
  border: none;
  font-size: 16px;
}

.overlay button {
  margin-top: 20px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  background: var(--highlight);
  color: #fff;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  transition: var(--transition);
}

.overlay button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.overlay button.secondary {
  background: #7f8c8d;
}

.button-group {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.leaderboard-container {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 20px;
  width: 100%;
  max-width: 500px;
  flex-shrink: 0;
  z-index: 10;
  position: relative;
}

.leaderboard-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.leaderboard-title svg {
  width: 24px;
  height: 24px;
  fill: gold;
}

.leaderboard-title h2 {
  color: #fff;
  font-size: 1.5rem;
}

.leaderboard-list {
  list-style: none;
}

.leaderboard-entry {
  display: grid;
  /* FIX: Larger name column and better spacing */
  grid-template-columns: 30px minmax(160px, 1fr) 80px 70px 90px;
  gap: 12px;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  margin-bottom: 8px;
  font-size: 14px;
}

.leaderboard-entry .rank {
  font-weight: bold;
  color: gold;
}

.leaderboard-entry .name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0; /* Allows text truncation when needed */
}

.leaderboard-entry .score,
.leaderboard-entry .moves, {
  text-align: right;
}

.no-scores {
  text-align: center;
  color: #999;
  padding: 10px;
}

@media (max-width: 1100px) {
  .container {
    flex-direction: column;
    gap: 30px;
  }
  .leaderboard-container {
    margin-top: 80px;
    max-width: 100%;
  }
  
  /* Adjust leaderboard columns on smaller screens */
  .leaderboard-entry {
    grid-template-columns: 30px minmax(120px, 1fr) 80px 70px 90px;
    font-size: 13px;
    gap: 8px;
  }
}

@media (max-width: 768px) and (orientation: landscape) {
  .container {
    gap: 10px;
  }
  
  .leaderboard-container {
    padding: 15px;
  }
}

h1 {
  margin-bottom: 15px;
}

@media (max-width: 768px) {
  h1 {
    font-size: 1.5rem;
    margin-bottom: 10px;
  }
}

@media (max-width: 768px) and (orientation: landscape) {
  h1 {
    font-size: 1.3rem;
    margin-bottom: 5px;
  }
}

@media (max-width: 600px) {
  .leaderboard-entry {
    grid-template-columns: 30px minmax(100px, 1fr) 70px 60px 80px;
    font-size: 12px;
    gap: 6px;
    padding: 8px 10px;
  }
  
  h1 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .overlay .message {
    padding: 20px;
    width: 95%;
  }
  
  .overlay input {
    font-size: 16px;
  }
  
  .overlay button {
    font-size: 14px;
    padding: 12px 18px;
    min-height: 44px;
  }
}