/* iOS 18 Design System - Glass Theme */

:root {
  /* iOS 18 Colors */
  --ios-blue: #007AFF;
  --ios-green: #34C759;
  --ios-orange: #FF9500;
  --ios-red: #FF3B30;
  --ios-gray: #8E8E93;
  --ios-gray-light: #C7C7CC;
  --ios-gray-dark: #48484A;
  
  /* Text Colors */
  --text-primary: #000000;
  --text-secondary: #3C3C43;
  --text-tertiary: #8E8E93;
  
  /* Background Colors */
  --bg-primary: rgba(255, 255, 255, 0.7);
  --bg-secondary: rgba(255, 255, 255, 0.5);
  --bg-tertiary: rgba(242, 242, 247, 0.6);
  --bg-overlay: rgba(0, 0, 0, 0.4);
  
  /* Border */
  --border-color: rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.04);
  
  /* Radius - iOS 18 uses more prominent radius */
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
}

/* Core Glass Panel */
.glass-panel {
  background: var(--bg-primary);
  backdrop-filter: blur(60px) saturate(180%);
  -webkit-backdrop-filter: blur(60px) saturate(180%);
  border: 0.5px solid var(--border-color);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-panel:hover {
  box-shadow: var(--shadow-lg);
}

/* Glass Card */
.glass-card {
  background: var(--bg-secondary);
  backdrop-filter: blur(50px) saturate(150%);
  -webkit-backdrop-filter: blur(50px) saturate(150%);
  border: 0.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Button System - iOS 18 Style */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.4px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--ios-blue);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 122, 255, 0.25);
}

.btn-primary:hover {
  background: #0051D5;
  transform: scale(1.02);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.35);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 0.5px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(242, 242, 247, 1);
  transform: scale(1.02);
}

.btn-secondary:active {
  transform: scale(0.98);
}

.btn-success {
  background: var(--ios-green);
  color: white;
  box-shadow: 0 2px 8px rgba(52, 199, 89, 0.25);
}

.btn-success:hover {
  background: #28A745;
  transform: scale(1.02);
}

.btn-danger {
  background: var(--ios-red);
  color: white;
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.25);
}

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

/* Input System - iOS 18 Style */
.input-glass {
  width: 100%;
  padding: 15px 16px;
  background: var(--bg-secondary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 0.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 17px;
  color: var(--text-primary);
  transition: all 0.2s ease;
  letter-spacing: -0.4px;
}

.input-glass::placeholder {
  color: var(--text-tertiary);
}

.input-glass:focus {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--ios-blue);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.08);
}

/* Badge System - iOS 18 Style */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.2px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.badge-pending {
  background: rgba(255, 149, 0, 0.15);
  color: var(--ios-orange);
}

.badge-completed {
  background: rgba(52, 199, 89, 0.15);
  color: var(--ios-green);
}

.badge-expired {
  background: rgba(255, 59, 48, 0.15);
  color: var(--ios-red);
}

.badge-info {
  background: rgba(0, 122, 255, 0.15);
  color: var(--ios-blue);
}

/* Status Indicator - iOS 18 Style */
.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-indicator.success {
  background: var(--ios-green);
}

.status-indicator.warning {
  background: var(--ios-orange);
}

.status-indicator.danger {
  background: var(--ios-red);
}

/* Loading Spinner - iOS 18 Style */
.loading-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--ios-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Animations - iOS 18 Style */
.fade-in {
  animation: fadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.scale-in {
  animation: scaleIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Toast Messages - iOS 18 Style */
.toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-primary);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  animation: toastIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 0.5px solid var(--border-color);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* Divider - iOS 18 Style */
.divider {
  height: 0.5px;
  background: var(--border-color);
  margin: var(--spacing-lg) 0;
}

/* Skeleton Loading - iOS 18 Style */
.skeleton {
  background: linear-gradient(90deg, 
    rgba(0, 0, 0, 0.06) 25%, 
    rgba(0, 0, 0, 0.12) 50%, 
    rgba(0, 0, 0, 0.06) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
  min-height: 20px;
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
  border-radius: 4px;
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: 12px;
  border-radius: 6px;
}

.skeleton-card {
  height: 200px;
  border-radius: var(--radius-lg);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}