/* Variables CSS pour les thèmes */
:root {
  --bg-gradient: linear-gradient(135deg, #f9fafb 0%, #ffffff 50%, #f3f4f6 100%);
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --text-accent: #d97706;
  --bg-card: rgba(255, 255, 255, 0.8);
  --bg-card-hover: rgba(255, 255, 255, 0.9);
  --border-color: #e5e7eb;
  --border-accent: #fbbf24;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --yellow-primary: #fbbf24;
  --yellow-secondary: #f59e0b;
  --green-success: #10b981;
  --red-error: #ef4444;
}

[data-theme="dark"] {
  --bg-gradient: linear-gradient(135deg, #111827 0%, #1f2937 50%, #000000 100%);
  --text-primary: #ffffff;
  --text-secondary: #d1d5db;
  --text-accent: #fbbf24;
  --bg-card: rgba(31, 41, 55, 0.5);
  --bg-card-hover: rgba(55, 65, 81, 0.5);
  --border-color: rgba(75, 85, 99, 0.5);
  --border-accent: rgba(251, 191, 36, 0.3);
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
}

/* Reset et base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-gradient);
  min-height: 100vh;
  transition: all 0.5s ease;
}

.app {
  min-height: 100vh;
  padding: 2rem 1rem;
}

.container {
  max-width: 48rem;
  margin: 0 auto;
}

/* Animations d'entrée */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-3px); }
  20%, 40%, 60%, 80% { transform: translateX(3px); }
}

@keyframes successPulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes codeReveal {
  0% {
    opacity: 0;
    transform: scale(0.8) rotateY(-90deg);
  }
  50% {
    transform: scale(1.05) rotateY(0deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotateY(0deg);
  }
}

@keyframes bounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Animations pour les messages de partage */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOutRight {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* Classes d'animation */
.animate-fade-in { animation: fadeIn 0.8s ease-out; }
.animate-slide-up { animation: slideUp 0.6s ease-out; }
.animate-scale-in { animation: scaleIn 0.5s ease-out; }
.animate-shake { animation: shake 0.5s ease-in-out; }
.animate-success-pulse { animation: successPulse 1s ease-out; }
.animate-code-reveal { animation: codeReveal 1s ease-out; }
.animate-bounce-in { animation: bounceIn 0.6s ease-out; }
.animate-slide-down { animation: slideDown 0.4s ease-out; }

/* Délais d'animation */
.delay-200 { animation-delay: 0.2s; animation-fill-mode: both; }
.delay-400 { animation-delay: 0.4s; animation-fill-mode: both; }
.delay-600 { animation-delay: 0.6s; animation-fill-mode: both; }
.delay-800 { animation-delay: 0.8s; animation-fill-mode: both; }
.delay-1000 { animation-delay: 1.0s; animation-fill-mode: both; }
.delay-1200 { animation-delay: 1.2s; animation-fill-mode: both; }
.delay-1400 { animation-delay: 1.4s; animation-fill-mode: both; }
.delay-1600 { animation-delay: 1.6s; animation-fill-mode: both; }

/* Contrôles de thème */
.theme-controls {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 10;
  display: flex;
  gap: 0.75rem;
}

.control-btn {
  padding: 0.75rem;
  border: none;
  border-radius: 50%;
  background: var(--yellow-primary);
  color: #000;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.control-btn:hover {
  transform: scale(1.1);
  background: var(--yellow-secondary);
}

.control-btn:active {
  transform: scale(0.95);
}

[data-theme="dark"] .control-btn {
  background: #374151;
  color: var(--yellow-primary);
}

[data-theme="dark"] .control-btn:hover {
  background: #4b5563;
}

.control-btn.active {
  background: var(--yellow-primary);
  color: #000;
}

.icon {
  width: 1.25rem;
  height: 1.25rem;
}

.hidden {
  display: none !important;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 3rem;
}

.logo {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.radio-icon {
  width: 2rem;
  height: 2rem;
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-secondary));
  color: #000;
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
}

.header h1 {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* History Panel */
.history-panel {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
  transition: all 0.5s ease;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.history-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.history-title .icon {
  color: var(--text-accent);
}

.clear-btn {
  padding: 0.5rem;
  border: none;
  border-radius: 0.5rem;
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  cursor: pointer;
  transition: all 0.3s ease;
}

.clear-btn:hover {
  background: rgba(239, 68, 68, 0.3);
  transform: scale(1.1);
}

.history-list {
  max-height: 16rem;
  overflow-y: auto;
}

.history-empty {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

.history-empty .icon {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 0.75rem;
  opacity: 0.5;
}

.history-empty .small {
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
  background: var(--bg-card-hover);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.history-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow);
}

.history-item-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.history-precode {
  font-family: 'Courier New', monospace;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-accent);
}

.history-code {
  font-family: 'Courier New', monospace;
  font-size: 1.5rem;
  font-weight: bold;
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.history-timestamp {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* Instructions */
.instructions {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

[data-theme="dark"] .instructions {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.instruction-content {
  display: flex;
  gap: 0.75rem;
}

.instruction-content .icon {
  color: var(--text-accent);
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.instructions h3 {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.instructions ul {
  list-style: none;
}

.instructions li {
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

/* Main Content */
.main-content {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-accent);
  border-radius: 1rem;
  padding: 2rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.input-section {
  margin-bottom: 1.5rem;
}

.input-section label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-accent);
  margin-bottom: 0.75rem;
}

.input-container {
  position: relative;
}

#precode {
  width: 100%;
  padding: 1rem;
  font-size: 1.5rem;
  font-family: 'Courier New', monospace;
  text-align: center;
  border: 2px solid var(--border-color);
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.9);
  color: #111827;
  transition: all 0.5s ease;
  outline: none;
}

#precode:focus {
  border-color: var(--yellow-primary);
  box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.2);
  transform: scale(1.02);
}

#precode.valid {
  border-color: var(--green-success);
  background: rgba(16, 185, 129, 0.1);
  transform: scale(1.05);
}

#precode.invalid {
  border-color: var(--red-error);
  background: rgba(239, 68, 68, 0.1);
}

.input-icon {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
}

.input-icon .icon {
  width: 1.5rem;
  height: 1.5rem;
}

#checkIcon {
  color: var(--green-success);
}

#errorIcon {
  color: var(--red-error);
}

.error-message {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--red-error);
}

/* Loading State */
.loading-state {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
}

.loading-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 2rem;
  color: var(--text-accent);
  font-weight: 500;
}

.spinner {
  width: 2rem;
  height: 2rem;
  animation: spin 1s linear infinite;
}

.loading-content span {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Code Result */
.code-result {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  margin-top: 1.5rem;
}

.code-result label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-accent);
  margin-bottom: 0.75rem;
}

.code-display {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.code-value {
  flex: 1;
  padding: 1rem;
  font-size: 1.875rem;
  font-family: 'Courier New', monospace;
  font-weight: bold;
  text-align: center;
  background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-secondary));
  color: #000;
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
}

.copy-btn {
  padding: 1rem;
  border: none;
  border-radius: 0.75rem;
  background: var(--yellow-primary);
  color: #000;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.copy-btn:hover {
  background: var(--yellow-secondary);
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.copy-btn:active {
  transform: scale(0.95);
}

.copy-btn.success {
  background: var(--green-success);
  color: white;
}

.copy-message {
  text-align: center;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-accent);
}

/* Share Section */
.share-section {
  position: relative;
  margin-top: 1rem;
}

.share-btn {
  width: 100%;
  padding: 0.875rem 1rem;
  border: none;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  color: white;
  cursor: pointer;
  transition: all var(--spring-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  box-shadow: var(--shadow);
}

.share-btn:hover {
  background: linear-gradient(135deg, #2563eb, #1e40af);
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.share-btn:active {
  transform: translateY(0) scale(0.98);
}

.share-options {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  padding: 0.75rem;
  margin-top: 0.5rem;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.5rem;
}

.share-option {
  padding: 0.75rem 0.5rem;
  border: none;
  border-radius: 0.5rem;
  background: var(--bg-card-hover);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--spring-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
}

.share-option:hover {
  background: var(--yellow-primary);
  color: #000;
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow);
}

.share-option:active {
  transform: translateY(0) scale(0.95);
}

.share-option .icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* WhatsApp specific styling */
.share-option[data-method="whatsapp"]:hover {
  background: #25d366;
  color: white;
}

/* SMS specific styling */
.share-option[data-method="sms"]:hover {
  background: #007aff;
  color: white;
}

/* Email specific styling */
.share-option[data-method="email"]:hover {
  background: #ea4335;
  color: white;
}

/* Telegram specific styling */
.share-option[data-method="telegram"]:hover {
  background: #0088cc;
  color: white;
}

/* Examples */
.examples {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.examples h3 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.example-buttons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 1rem;
}

.example-btn {
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 0.5rem;
  background: var(--bg-card-hover);
  color: var(--text-primary);
  font-family: 'Courier New', monospace;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.example-btn:hover {
  background: var(--yellow-primary);
  color: #000;
  transform: scale(1.05);
  box-shadow: var(--shadow);
}

.example-btn:active {
  transform: scale(0.95);
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .app {
    padding: 1rem 0.5rem;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .theme-controls {
    top: 1rem;
    right: 1rem;
  }
  
  .main-content {
    padding: 1.5rem;
  }
  
  .example-buttons {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .code-display {
    flex-direction: column;
  }
  
  .copy-btn {
    width: 100%;
  }
}