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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f5f0eb;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 10px;
  user-select: none;
  -webkit-user-select: none;
}

#app {
  max-width: 600px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 8px 0;
}

.header-center {
  display: flex;
  gap: 30px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-label {
  font-size: 14px;
  color: #8b7355;
  font-weight: 500;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: #5d4e37;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.player-name {
  font-size: 14px;
  color: #8b7355;
  font-weight: 600;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid #d4c5b0;
  background: #fff;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8b7355;
  transition: background 0.2s;
}

.icon-btn:hover {
  background: #f0e8dc;
}

.info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 8px 16px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.progress {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 600;
  color: #5d4e37;
}

.cat-icon {
  font-size: 24px;
}

.errors {
  display: flex;
  gap: 4px;
  font-size: 22px;
}

.heart {
  transition: opacity 0.3s;
}

.heart.lost {
  opacity: 0.2;
}

.rules-bar {
  display: flex;
  gap: 8px;
  width: 100%;
  flex-wrap: wrap;
  justify-content: center;
}

.rule {
  background: #fff;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: #8b7355;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
  white-space: nowrap;
}

.grid-container {
  display: grid;
  gap: 2px;
  background: #d4c5b0;
  padding: 3px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1;
}

.cell {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  transition: transform 0.1s, filter 0.1s;
  position: relative;
  border-radius: 3px;
}

.cell:hover {
  filter: brightness(1.1);
}

.cell:active {
  transform: scale(0.95);
}

.cell .cat {
  font-size: 22px;
  pointer-events: none;
  animation: catPlace 0.3s ease;
}

.cell .x-mark {
  font-size: 18px;
  color: rgba(255,255,255,0.85);
  font-weight: 700;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.cell.error-flash {
  animation: errorFlash 0.5s ease;
}

@keyframes catPlace {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes errorFlash {
  0%, 100% { filter: brightness(1); }
  25% { filter: brightness(2) hue-rotate(320deg); }
  50% { filter: brightness(0.8); }
  75% { filter: brightness(1.5) hue-rotate(320deg); }
}

.controls {
  display: flex;
  gap: 20px;
  align-items: center;
}

.tool-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}

.tool-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

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

.hint-count {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #e74c3c;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hint-count.zero {
  background: #d4af37;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.size-selector {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 10px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.size-selector label {
  font-size: 14px;
  color: #8b7355;
  font-weight: 500;
}

.size-selector select {
  padding: 6px 10px;
  border-radius: 8px;
  border: 2px solid #d4c5b0;
  font-size: 14px;
  color: #5d4e37;
  background: #fff;
  cursor: pointer;
}

.size-selector button {
  padding: 8px 18px;
  border-radius: 8px;
  border: none;
  background: #5d4e37;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.size-selector button:hover {
  background: #7a6750;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-overlay.hidden {
  display: none;
}

.modal {
  background: #fff;
  border-radius: 16px;
  padding: 30px 40px;
  text-align: center;
  max-width: 350px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal h2 {
  font-size: 24px;
  color: #5d4e37;
  margin-bottom: 12px;
}

.modal p {
  font-size: 16px;
  color: #8b7355;
  margin-bottom: 20px;
}

.modal-btn {
  padding: 10px 30px;
  border-radius: 10px;
  border: none;
  background: #5d4e37;
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.modal-btn:hover {
  background: #7a6750;
}

/* Premium Modal Styles */
.premium-modal {
  background: linear-gradient(135deg, #fff 0%, #f8f4ff 100%);
  border: 3px solid #d4af37;
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.3);
}

.premium-icon {
  font-size: 60px;
  margin-bottom: 10px;
}

.premium-text {
  font-size: 14px;
  color: #666;
  font-style: italic;
  margin: 10px 0;
}

.premium-timer {
  font-size: 16px;
  color: #5d4e37;
  margin: 15px 0;
  font-weight: 600;
}

.timer-value {
  font-size: 24px;
  color: #e74c3c;
  font-weight: 700;
}

.premium-btn {
  background: #d4af37;
  transition: background 0.3s, opacity 0.3s;
}

.premium-btn:hover:not(:disabled) {
  background: #b8941f;
}

.premium-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
  opacity: 0.6;
}

/* Name Input Modal Styles */
.name-modal {
  background: linear-gradient(135deg, #fff 0%, #f0f8ff 100%);
  border: 3px solid #4a90d9;
  box-shadow: 0 8px 32px rgba(74, 144, 217, 0.3);
}

.name-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #d4c5b0;
  border-radius: 10px;
  font-size: 18px;
  text-align: center;
  margin: 15px 0;
  outline: none;
  transition: border-color 0.2s;
}

.name-input:focus {
  border-color: #4a90d9;
}

.name-modal h2 {
  color: #4a90d9;
  margin-bottom: 10px;
}