:root {
  --color-primary: #d4a574;
  --color-secondary: #8b6f47;
  --color-bg: #1a1a2e;
  --color-surface: #2d2d4a;
  --color-text: #ecf0f1;
  --color-text-light: #bdc3c7;
  --color-accent: #f39c12;
  --color-success: #27ae60;
  --color-danger: #e74c3c;
  --radius: 12px;
  --transition: all 0.3s ease;
}

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

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  overflow: hidden;
}

html[dir="rtl"] body {
  direction: rtl;
}

.app-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, var(--color-bg) 0%, #0f1a27 100%);
}

.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(45, 45, 74, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(212, 165, 116, 0.1);
  z-index: 100;
}

.game-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  flex: 1;
  text-align: center;
}

.btn-back, .btn-settings {
  width: 40px;
  height: 40px;
  background: rgba(212, 165, 116, 0.1);
  border: 1px solid var(--color-primary);
  border-radius: 8px;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.btn-back::before {
  content: '←';
}

.btn-settings::before {
  content: '⚙';
}

.btn-back:hover, .btn-settings:hover {
  background: rgba(212, 165, 116, 0.2);
}

.game-view {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 16px;
}

.menu-screen, .play-screen, .game-over-screen {
  width: 100%;
  max-width: 600px;
}

.menu-content {
  text-align: center;
  animation: fadeIn 0.4s ease;
}

.menu-title {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.menu-subtitle {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.menu-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn-primary, .btn-secondary {
  padding: 14px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(212, 165, 116, 0.3);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: rgba(212, 165, 116, 0.1);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(212, 165, 116, 0.2);
}

.play-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 900px;
  width: 100%;
}

.dice-area {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dice-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.die {
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 700;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

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

.die.held {
  background: linear-gradient(135deg, var(--color-accent), #e67e22);
  box-shadow: 0 0 12px var(--color-accent);
}

.roll-info {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.rolls-left {
  font-size: 14px;
  color: var(--color-text-light);
  text-align: center;
}

.btn-roll {
  width: 100%;
  font-size: 18px;
}

.scorecard {
  background: rgba(45, 45, 74, 0.6);
  border-radius: var(--radius);
  padding: 16px;
  border: 1px solid rgba(212, 165, 116, 0.1);
  backdrop-filter: blur(10px);
}

.scorecard h3 {
  color: var(--color-primary);
  margin-bottom: 12px;
  font-size: 16px;
}

.score-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}

.score-btn {
  background: rgba(212, 165, 116, 0.1);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 8px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.score-btn:hover:not(:disabled) {
  background: rgba(212, 165, 116, 0.2);
}

.score-btn.used {
  background: var(--color-primary);
  color: var(--color-bg);
}

.total-score {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid rgba(212, 165, 116, 0.1);
  margin-top: 12px;
  font-weight: 600;
  font-size: 18px;
}

.game-over-content {
  text-align: center;
  animation: slideUp 0.4s ease;
}

.final-score {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 24px 0;
  font-size: 18px;
}

.final-score-value {
  font-size: 48px;
  font-weight: 800;
  color: var(--color-primary);
}

.game-over-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 400px;
  width: 90%;
  border: 1px solid rgba(212, 165, 116, 0.2);
  position: relative;
  animation: popIn 0.3s ease;
}

.modal-content.modal-large {
  max-width: 600px;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--color-primary);
  cursor: pointer;
}

.modal h2 {
  color: var(--color-primary);
  margin-bottom: 16px;
}

.settings-group {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.settings-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--color-text);
}

.settings-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
}

.challenge-input {
  width: 100%;
  padding: 10px;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-primary);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 14px;
}

.challenge-actions {
  display: flex;
  gap: 12px;
}

.challenge-actions button {
  flex: 1;
}

.rules-content {
  background: rgba(212, 165, 116, 0.05);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  line-height: 1.6;
  color: var(--color-text-light);
  font-size: 14px;
}

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

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

@keyframes popIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@media (max-width: 768px) {
  .play-container {
    grid-template-columns: 1fr;
  }
  
  .dice-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }
  
  .die {
    font-size: 24px;
  }
  
  .scorecard {
    max-height: 300px;
    overflow-y: auto;
  }
  
  .menu-title {
    font-size: 36px;
  }
}