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

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #0d3b2e 0%, #0f4c3a 30%, #134e3e 60%, #1a5c48 100%);
  min-height: 100vh;
  color: #fff;
  overflow-x: hidden;
}

.game-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 40px;
}

.header {
  text-align: center;
  margin-bottom: 20px;
}

.title {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #5eead4, #2dd4bf, #14b8a6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
}

.subtitle {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.65);
  font-weight: 500;
}

.info-bar {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.info-item {
  background: rgba(13, 148, 136, 0.15);
  border: 1px solid rgba(13, 148, 136, 0.25);
  border-radius: 12px;
  padding: 10px 22px;
  text-align: center;
  backdrop-filter: blur(8px);
  min-width: 100px;
}

.info-label {
  display: block;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 600;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: #5eead4;
  font-variant-numeric: tabular-nums;
}

.solitaire-board {
  background: linear-gradient(145deg, #0a5c42 0%, #065c3f 50%, #054d34 100%);
  border-radius: 18px;
  padding: 18px 16px 24px;
  border: 1px solid rgba(94, 234, 212, 0.12);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.solitaire-board::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(45, 212, 191, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.top-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
  min-height: 110px;
  position: relative;
  z-index: 1;
}

.stock-pile,
.waste-pile {
  width: 80px;
  height: 110px;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.foundation-area {
  display: flex;
  gap: 8px;
  margin-left: auto;
  flex: 1;
  justify-content: flex-end;
}

.foundation-pile {
  width: 80px;
  height: 110px;
  position: relative;
  flex-shrink: 0;
}

.pile-slot {
  width: 100%;
  height: 100%;
  border-radius: 9px;
  border: 2px dashed rgba(94, 234, 212, 0.25);
  background: rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.foundation-slot span {
  font-size: 28px;
  opacity: 0.25;
  transition: opacity 0.25s ease;
}

.tableau-slot {
  border-color: rgba(94, 234, 212, 0.18);
}

.tableau-area {
  display: flex;
  gap: 7px;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.tableau-pile {
  width: 80px;
  min-height: 120px;
  position: relative;
  flex-shrink: 0;
}

.card {
  width: 80px;
  height: 110px;
  position: absolute;
  border-radius: 9px;
  cursor: pointer;
  transform-style: preserve-3d;
  transition: transform 0.15s ease, box-shadow 0.15s ease, left 0.2s ease, top 0.2s ease;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

.card:hover:not(.card-face-down):not(.dragging) {
  transform: translateY(-3px) scale(1.02);
  z-index: 100 !important;
}

.card.dragging {
  z-index: 9999 !important;
  cursor: grabbing;
  transition: box-shadow 0.15s ease;
  transform: scale(1.04) rotate(2deg);
}

.card.selected {
  box-shadow: 0 0 0 3px #5eead4, 0 8px 24px rgba(94, 234, 212, 0.4) !important;
}

.card.hint-highlight {
  animation: hintPulse 0.8s ease-in-out infinite;
}

@keyframes hintPulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.6), 0 4px 16px rgba(250, 204, 21, 0.3); }
  50% { box-shadow: 0 0 0 5px rgba(250, 204, 21, 0.9), 0 8px 28px rgba(250, 204, 21, 0.5); }
}

.card-face-front,
.card-face-back {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 9px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.card-face-front {
  background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.18),
    0 1px 3px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  transform: rotateY(0deg);
  overflow: hidden;
}

.card-face-front::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.5) 50%, transparent 60%);
  pointer-events: none;
}

.card-corner {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  font-weight: 800;
  font-size: 14px;
}

.card-corner-top {
  top: 5px;
  left: 6px;
}

.card-corner-bottom {
  bottom: 5px;
  right: 6px;
  transform: rotate(180deg);
}

.card-suit-center {
  font-size: 36px;
  line-height: 1;
  margin-top: 2px;
}

.card.red .card-corner,
.card.red .card-suit-center {
  color: #dc2626;
}

.card.black .card-corner,
.card.black .card-suit-center {
  color: #1a1a1a;
}

.card-face-back {
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 50%, #115e59 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.25),
    0 1px 3px rgba(0, 0, 0, 0.15);
  transform: rotateY(180deg);
  overflow: hidden;
}

.card-face-back::after {
  content: '';
  position: absolute;
  inset: 6px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  background:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 6px,
      rgba(255, 255, 255, 0.04) 6px,
      rgba(255, 255, 255, 0.04) 12px
    ),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 6px,
      rgba(255, 255, 255, 0.03) 6px,
      rgba(255, 255, 255, 0.03) 12px
    );
}

.card-face-back .back-pattern {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: rgba(255, 255, 255, 0.15);
}

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

.card-face-down .card-face-back {
  transform: rotateY(0deg);
}

.card.flipping {
  animation: cardFlip3D 0.4s ease-in-out;
}

@keyframes cardFlip3D {
  0% { transform: rotateY(180deg); }
  100% { transform: rotateY(0deg); }
}

.card-flip-to-back {
  animation: cardFlipToBack 0.35s ease-in-out forwards;
}

@keyframes cardFlipToBack {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(180deg); }
}

.card-deal-animation {
  animation: dealCard 0.25s ease-out forwards;
}

@keyframes dealCard {
  0% {
    opacity: 0;
    transform: translateX(-200px) translateY(-150px) rotate(-10deg) scale(0.8);
  }
  100% {
    opacity: 1;
    transform: translateX(0) translateY(0) rotate(0deg) scale(1);
  }
}

.card-to-foundation {
  animation: moveToFoundation 0.3s ease-out forwards;
}

@keyframes moveToFoundation {
  0% { transform: scale(1.1); }
  50% { transform: scale(1.15) translateY(-8px); }
  100% { transform: scale(1) translateY(0); }
}

.stock-pile .pile-slot:hover {
  border-color: rgba(94, 234, 212, 0.5);
  background: rgba(94, 234, 212, 0.08);
}

.stock-empty .pile-slot {
  border-color: rgba(94, 234, 212, 0.15);
  background: rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

.stock-empty .pile-slot::after {
  content: '↻';
  font-size: 28px;
  color: rgba(94, 234, 212, 0.3);
}

.controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.control-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: rgba(13, 148, 136, 0.2);
  border: 1px solid rgba(13, 148, 136, 0.3);
  border-radius: 10px;
  color: #5eead4;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.control-btn:hover {
  background: #0d9488;
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(13, 148, 136, 0.35);
}

.control-btn:active {
  transform: translateY(0);
}

.control-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  font-size: 1.1rem;
}

.btn-text {
  white-space: nowrap;
}

.instructions {
  margin-top: 24px;
  background: rgba(0, 0, 0, 0.15);
  border-radius: 14px;
  padding: 20px 24px;
  border: 1px solid rgba(94, 234, 212, 0.1);
}

.instructions h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #5eead4;
  margin-bottom: 12px;
}

.instructions ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 8px;
}

.instructions li {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.7);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}

.instructions li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: #0d9488;
  font-size: 0.65rem;
  top: 4px;
}

.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 20000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: linear-gradient(145deg, #0f4c3a, #0a3829);
  border-radius: 20px;
  padding: 36px 40px;
  text-align: center;
  border: 1px solid rgba(94, 234, 212, 0.2);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  max-width: 420px;
  width: 90%;
  animation: modalSlideIn 0.35s ease-out;
}

@keyframes modalSlideIn {
  from { transform: translateY(30px) scale(0.95); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}

.win-icon {
  font-size: 56px;
  margin-bottom: 12px;
  animation: bounceIn 0.6s ease-out;
}

@keyframes bounceIn {
  0% { transform: scale(0); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.modal-content h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: #5eead4;
  margin-bottom: 20px;
}

.win-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}

.stat-item {
  text-align: center;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-value {
  display: block;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.modal-btn {
  padding: 12px 36px;
  background: linear-gradient(135deg, #0d9488, #14b8a6);
  border: none;
  border-radius: 10px;
  color: white;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.drop-highlight {
  box-shadow: 0 0 0 3px rgba(94, 234, 212, 0.6), 0 0 20px rgba(94, 234, 212, 0.3) !important;
  border-color: #5eead4 !important;
}

@media (max-width: 768px) {
  .game-container {
    padding: 12px 8px 30px;
  }

  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.82rem;
  }

  .top-row {
    gap: 6px;
    min-height: 90px;
    margin-bottom: 14px;
  }

  .stock-pile,
  .waste-pile,
  .foundation-pile {
    width: 52px;
    height: 74px;
  }

  .foundation-area {
    gap: 4px;
  }

  .card {
    width: 52px;
    height: 74px;
  }

  .tableau-area {
    gap: 3px;
  }

  .tableau-pile {
    width: 52px;
    min-height: 80px;
  }

  .card-corner {
    font-size: 11px;
  }

  .card-corner-top {
    top: 3px;
    left: 4px;
  }

  .card-corner-bottom {
    bottom: 3px;
    right: 4px;
  }

  .card-suit-center {
    font-size: 22px;
  }

  .foundation-slot span {
    font-size: 18px;
  }

  .info-bar {
    gap: 10px;
  }

  .info-item {
    padding: 8px 14px;
    min-width: 78px;
  }

  .info-value {
    font-size: 1.1rem;
  }

  .controls {
    gap: 8px;
  }

  .control-btn {
    padding: 8px 14px;
    font-size: 0.78rem;
  }

  .instructions ul {
    grid-template-columns: 1fr;
  }

  .instructions li {
    font-size: 0.78rem;
  }

  .modal-content {
    padding: 24px 20px;
  }

  .win-stats {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .stock-pile,
  .waste-pile,
  .foundation-pile {
    width: 44px;
    height: 62px;
  }

  .card {
    width: 44px;
    height: 62px;
  }

  .tableau-pile {
    width: 44px;
  }

  .tableau-area {
    gap: 2px;
  }

  .card-corner {
    font-size: 9px;
  }

  .card-suit-center {
    font-size: 17px;
  }

  .foundation-slot span {
    font-size: 14px;
  }

  .info-bar {
    gap: 6px;
  }

  .info-item {
    padding: 6px 10px;
    min-width: 68px;
  }

  .control-btn {
    padding: 7px 10px;
    font-size: 0.72rem;
  }

  .btn-text {
    display: none;
  }

  .control-btn .btn-icon {
    font-size: 1.2rem;
  }
}