/**
 * West Bethel Motel - Theme System
 *
 * Automatic light/dark mode support for all pages
 * Follows system OS preference via prefers-color-scheme
 *
 * Usage: <link rel="stylesheet" href="/css/theme.css">
 */

/* ==========================================
   LIGHT MODE (DEFAULT)
   ========================================== */

:root {
  /* Primary Colors */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-secondary: #10b981;
  --color-secondary-hover: #059669;
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;

  /* Status Colors */
  --color-success: #10b981;
  --color-success-bg: #d1fae5;
  --color-warning: #f59e0b;
  --color-warning-bg: #fef3c7;
  --color-danger: #ef4444;
  --color-danger-bg: #fee2e2;
  --color-info: #3b82f6;
  --color-info-bg: #dbeafe;

  /* Room Status Colors */
  --color-available: #10b981;
  --color-available-bg: #d1fae5;
  --color-occupied: #ef4444;
  --color-occupied-bg: #fee2e2;
  --color-reserved: #f59e0b;
  --color-reserved-bg: #fef3c7;
  --color-maintenance: #6b7280;
  --color-maintenance-bg: #f3f4f6;

  /* Backgrounds */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-bg-elevated: #ffffff;
  --color-bg-overlay: rgba(0, 0, 0, 0.5);

  /* Text Colors */
  --color-text-primary: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-tertiary: #9ca3af;
  --color-text-inverse: #ffffff;
  --color-text-link: #2563eb;
  --color-text-link-hover: #1d4ed8;

  /* Borders */
  --color-border-primary: #e5e7eb;
  --color-border-secondary: #d1d5db;
  --color-border-focus: #2563eb;
  --color-border-error: #ef4444;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Interactive Elements */
  --color-input-bg: #ffffff;
  --color-input-border: #d1d5db;
  --color-input-focus: #2563eb;
  --color-input-disabled: #f3f4f6;
  --color-input-text: #1f2937;
  --color-input-placeholder: #9ca3af;

  /* Buttons */
  --color-btn-primary: #2563eb;
  --color-btn-primary-hover: #1d4ed8;
  --color-btn-primary-text: #ffffff;
  --color-btn-secondary: #f3f4f6;
  --color-btn-secondary-hover: #e5e7eb;
  --color-btn-secondary-text: #1f2937;
  --color-btn-danger: #ef4444;
  --color-btn-danger-hover: #dc2626;
  --color-btn-danger-text: #ffffff;
  --color-btn-inactive: #e5e7eb;
  --color-btn-inactive-text: #6b7280;
  --color-btn-inactive-hover: #d1d5db;

  /* Cards & Panels */
  --color-card-bg: #ffffff;
  --color-card-border: #e5e7eb;
  --color-card-hover: #f9fafb;

  /* Navigation */
  --color-nav-bg: #ffffff;
  --color-nav-border: #e5e7eb;
  --color-nav-text: #1f2937;
  --color-nav-active: #2563eb;
  --color-nav-hover: #f3f4f6;

  /* Tables */
  --color-table-header: #f9fafb;
  --color-table-border: #e5e7eb;
  --color-table-row-hover: #f9fafb;
  --color-table-row-alt: #f9fafb;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  --gradient-secondary: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-hero: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
}

/* ==========================================
   DARK MODE
   ========================================== */

@media (prefers-color-scheme: dark) {
  :root {
    /* Primary Colors - Slightly muted for dark mode */
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-light: #1e3a8a;
    --color-secondary: #34d399;
    --color-secondary-hover: #6ee7b7;
    --color-accent: #fbbf24;
    --color-accent-hover: #fcd34d;

    /* Status Colors */
    --color-success: #34d399;
    --color-success-bg: #064e3b;
    --color-warning: #fbbf24;
    --color-warning-bg: #78350f;
    --color-danger: #f87171;
    --color-danger-bg: #7f1d1d;
    --color-info: #60a5fa;
    --color-info-bg: #1e3a8a;

    /* Room Status Colors */
    --color-available: #34d399;
    --color-available-bg: #064e3b;
    --color-occupied: #f87171;
    --color-occupied-bg: #7f1d1d;
    --color-reserved: #fbbf24;
    --color-reserved-bg: #78350f;
    --color-maintenance: #9ca3af;
    --color-maintenance-bg: #374151;

    /* Backgrounds */
    --color-bg-primary: #111827;
    --color-bg-secondary: #1f2937;
    --color-bg-tertiary: #374151;
    --color-bg-elevated: #1f2937;
    --color-bg-overlay: rgba(0, 0, 0, 0.7);

    /* Text Colors */
    --color-text-primary: #f9fafb;
    --color-text-secondary: #d1d5db;
    --color-text-tertiary: #9ca3af;
    --color-text-inverse: #1f2937;
    --color-text-link: #60a5fa;
    --color-text-link-hover: #93c5fd;

    /* Borders */
    --color-border-primary: #374151;
    --color-border-secondary: #4b5563;
    --color-border-focus: #3b82f6;
    --color-border-error: #f87171;

    /* Shadows - More pronounced in dark mode */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.4);

    /* Interactive Elements */
    --color-input-bg: #1f2937;
    --color-input-border: #4b5563;
    --color-input-focus: #3b82f6;
    --color-input-disabled: #374151;
    --color-input-text: #f9fafb;
    --color-input-placeholder: #6b7280;

    /* Buttons */
    --color-btn-primary: #3b82f6;
    --color-btn-primary-hover: #60a5fa;
    --color-btn-primary-text: #ffffff;
    --color-btn-secondary: #374151;
    --color-btn-secondary-hover: #4b5563;
    --color-btn-secondary-text: #f9fafb;
    --color-btn-danger: #ef4444;
    --color-btn-danger-hover: #f87171;
    --color-btn-danger-text: #ffffff;
    --color-btn-inactive: #374151;
    --color-btn-inactive-text: #9ca3af;
    --color-btn-inactive-hover: #4b5563;

    /* Cards & Panels */
    --color-card-bg: #1f2937;
    --color-card-border: #374151;
    --color-card-hover: #374151;

    /* Navigation */
    --color-nav-bg: #1f2937;
    --color-nav-border: #374151;
    --color-nav-text: #f9fafb;
    --color-nav-active: #3b82f6;
    --color-nav-hover: #374151;

    /* Tables */
    --color-table-header: #1f2937;
    --color-table-border: #374151;
    --color-table-row-hover: #374151;
    --color-table-row-alt: #1f2937;

    /* Gradients - Adjusted for dark mode */
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --gradient-secondary: linear-gradient(135deg, #34d399 0%, #10b981 100%);
    --gradient-accent: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --gradient-hero: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
  }
}

/* ==========================================
   UTILITY CLASSES
   ========================================== */

/* Backgrounds */
.bg-primary { background-color: var(--color-bg-primary); }
.bg-secondary { background-color: var(--color-bg-secondary); }
.bg-tertiary { background-color: var(--color-bg-tertiary); }
.bg-elevated { background-color: var(--color-bg-elevated); }

/* Text Colors */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-inverse { color: var(--color-text-inverse); }

/* Borders */
.border-primary { border-color: var(--color-border-primary); }
.border-secondary { border-color: var(--color-border-secondary); }

/* Status Badges */
.badge-success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.badge-warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.badge-danger {
  background-color: var(--color-danger-bg);
  color: var(--color-danger);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.badge-info {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

/* Room Status Classes */
.room-available {
  background-color: var(--color-available-bg);
  color: var(--color-available);
  border-left: 4px solid var(--color-available);
}

.room-occupied {
  background-color: var(--color-occupied-bg);
  color: var(--color-occupied);
  border-left: 4px solid var(--color-occupied);
}

.room-reserved {
  background-color: var(--color-reserved-bg);
  color: var(--color-reserved);
  border-left: 4px solid var(--color-reserved);
}

.room-maintenance {
  background-color: var(--color-maintenance-bg);
  color: var(--color-maintenance);
  border-left: 4px solid var(--color-maintenance);
}

/* Cards */
.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: all 0.2s ease;
}

.card:hover {
  background-color: var(--color-card-hover);
  box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

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

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

.btn-secondary {
  background-color: var(--color-btn-secondary);
  color: var(--color-btn-secondary-text);
}

.btn-secondary:hover {
  background-color: var(--color-btn-secondary-hover);
}

.btn-danger {
  background-color: var(--color-btn-danger);
  color: var(--color-btn-danger-text);
}

.btn-danger:hover {
  background-color: var(--color-btn-danger-hover);
}

/* Inputs */
.input {
  background-color: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  color: var(--color-input-text);
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
}

.input:focus {
  outline: none;
  border-color: var(--color-input-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.input:disabled {
  background-color: var(--color-input-disabled);
  cursor: not-allowed;
}

/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table thead {
  background-color: var(--color-table-header);
}

.table th,
.table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-table-border);
  color: var(--color-text-primary);
}

.table tbody tr:hover {
  background-color: var(--color-table-row-hover);
}

.table tbody tr:nth-child(even) {
  background-color: var(--color-table-row-alt);
}

/* Navigation */
.nav {
  background-color: var(--color-nav-bg);
  border-bottom: 1px solid var(--color-nav-border);
}

.nav-item {
  color: var(--color-nav-text);
  padding: 0.75rem 1rem;
  transition: background-color 0.2s ease;
}

.nav-item:hover {
  background-color: var(--color-nav-hover);
}

.nav-item.active {
  color: var(--color-nav-active);
  border-bottom: 2px solid var(--color-nav-active);
}

/* Links */
a {
  color: var(--color-text-link);
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-text-link-hover);
}

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* ==========================================
   SMOOTH TRANSITIONS
   ========================================== */

* {
  transition-property: background-color, border-color, color, fill, stroke;
  transition-duration: 200ms;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Disable transitions on theme change to prevent flash */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}