/* ============================================
   Global CSS Variables - Theme System
   ============================================
   
   This file defines CSS custom properties (variables) for consistent
   theming across the application. Change values here to update the
   entire app's color scheme.
   
   To switch themes, add a data-theme attribute on the body/html element.
*/

/* ============================================
   CSS VARIABLES - Default (Light) Theme
   ============================================ */

:root {
  /* Primary Colors - Subtle Dark Blue Accents */
  --color-primary: #1e3a5f;
  --color-primary-hover: #2d4a6b;
  --color-primary-light: #3d5a7a;
  --color-primary-dark: #152a45;

  /* Background Colors - Matte/Glassy Feel */
  --color-bg-primary: rgba(255, 255, 255, 0.85);
  --color-bg-secondary: #f5f7fa;
  --color-bg-tertiary: rgba(255, 255, 255, 0.6);
  --color-bg-hover: rgba(30, 58, 95, 0.05);

  /* Text Colors */
  --color-text-primary: #1e293b;
  --color-text-secondary: #334155;
  --color-text-tertiary: #64748b;
  --color-text-muted: #94a3b8;
  --color-text-inverse: #ffffff;

  /* Border Colors */
  --color-border-primary: rgba(30, 58, 95, 0.15);
  --color-border-secondary: rgba(30, 58, 95, 0.1);
  --color-border-focus: #1e3a5f;

  /* Form Input Colors */
  --color-input-bg: rgba(255, 255, 255, 0.9);
  --color-input-border: rgba(30, 58, 95, 0.2);
  --color-input-focus: #1e3a5f;

  /* Status Colors - Success */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-success-border: #10b981;
  --color-success-text: #065f46;

  /* Status Colors - Error */
  --color-error: #ef4444;
  --color-error-bg: rgba(239, 68, 68, 0.1);
  --color-error-border: #ef4444;
  --color-error-text: #991b1b;

  /* Status Colors - Warning */
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-warning-border: #f59e0b;
  --color-warning-text: #92400e;

  /* Status Colors - Info */
  --color-info: #3b82f6;
  --color-info-bg: rgba(59, 130, 246, 0.1);
  --color-info-border: #3b82f6;
  --color-info-text: #1e40af;

  /* Shadows - Softer for Matte Feel */
  --color-shadow-sm: rgba(30, 58, 95, 0.08);
  --color-shadow-md: rgba(30, 58, 95, 0.12);
  --color-shadow-lg: rgba(30, 58, 95, 0.16);
  --color-shadow-glass: rgba(30, 58, 95, 0.1);

  /* Glass Effect */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-blur: blur(10px);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}

/* ============================================
   THEME OVERRIDES
   ============================================ */


/* Blue Accent Theme */
[data-theme="blue"] {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-border-focus: #2563eb;
}

/* Dark Theme - Matte Gray Approach */
[data-theme="dark"] {
  /* Primary Colors - Soft Blue Accents */
  --color-primary: #5b8fc7;
  --color-primary-hover: #4a7db3;
  --color-primary-light: #7ba3d4;
  --color-primary-dark: #4a7db3;

  /* Background Colors - Matte Gray */
  --color-bg-primary: rgba(42, 42, 48, 0.85);
  --color-bg-secondary: #2a2a30;
  --color-bg-tertiary: rgba(58, 58, 65, 0.6);
  --color-bg-hover: rgba(91, 143, 199, 0.1);

  /* Text Colors */
  --color-text-primary: #e5e7eb;
  --color-text-secondary: #d1d5db;
  --color-text-tertiary: #9ca3af;
  --color-text-muted: #6b7280;
  --color-text-inverse: #ffffff;

  /* Border Colors */
  --color-border-primary: rgba(255, 255, 255, 0.1);
  --color-border-secondary: rgba(255, 255, 255, 0.08);
  --color-border-focus: #5b8fc7;

  /* Form Input Colors */
  --color-input-bg: rgba(42, 42, 48, 0.9);
  --color-input-border: rgba(255, 255, 255, 0.15);
  --color-input-focus: #5b8fc7;

  /* Status Colors - Success */
  --color-success: #34d399;
  --color-success-bg: rgba(16, 185, 129, 0.15);
  --color-success-border: #34d399;
  --color-success-text: #d1fae5;

  /* Status Colors - Error */
  --color-error: #f87171;
  --color-error-bg: rgba(239, 68, 68, 0.15);
  --color-error-border: #f87171;
  --color-error-text: #fee2e2;

  /* Status Colors - Warning */
  --color-warning: #fbbf24;
  --color-warning-bg: rgba(245, 158, 11, 0.15);
  --color-warning-border: #fbbf24;
  --color-warning-text: #fef3c7;

  /* Status Colors - Info */
  --color-info: #60a5fa;
  --color-info-bg: rgba(59, 130, 246, 0.15);
  --color-info-border: #60a5fa;
  --color-info-text: #dbeafe;

  /* Shadows - Adjusted for Dark Mode */
  --color-shadow-sm: rgba(0, 0, 0, 0.2);
  --color-shadow-md: rgba(0, 0, 0, 0.3);
  --color-shadow-lg: rgba(0, 0, 0, 0.4);
  --color-shadow-glass: rgba(0, 0, 0, 0.25);

  /* Glass Effect - Dark Mode */
  --glass-bg: rgba(42, 42, 48, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-blur: blur(10px);
}

/* ============================================
   BASE STYLES
   ============================================ */

body {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(30, 58, 95, 0.03) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(30, 58, 95, 0.03) 0px, transparent 50%);
}

[data-theme="dark"] body {
  background-image: 
    radial-gradient(at 0% 0%, rgba(91, 143, 199, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(91, 143, 199, 0.05) 0px, transparent 50%);
}

/* ============================================
   FORM INPUTS
   ============================================ */

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="datetime-local"],
textarea,
select {
  background-color: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  padding: 0.5rem 0.75rem;
  transition: border-color var(--transition-base);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--color-input-focus);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-shadow-sm);
}

[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
  box-shadow: 0 0 0 3px var(--color-shadow-sm);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

/* Select dropdown styling for dark theme */
[data-theme="dark"] select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%239ca3af' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

/* ============================================
   LINKS
   ============================================ */

a {
  color: var(--color-primary);
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-hover);
}

[data-theme="dark"] a {
  color: var(--color-primary-light);
}

[data-theme="dark"] a:hover {
  color: var(--color-primary);
}

/* ============================================
   BUTTONS
   ============================================ */

.bg-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background-color var(--transition-base), color var(--transition-base);
}

.bg-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
}

.bg-primary:active {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

.bg-primary.rounded-full {
  border-radius: 9999px;
}

/* Active/Selected state for navigation items */
.bg-primary.text-text-inverse,
.bg-primary.text-text-inverse:hover,
.bg-primary.text-text-inverse:active {
  color: var(--color-text-inverse) !important;
}

/* Ensure buttons with primary background always have correct text color */
button.bg-primary,
a.bg-primary,
input[type="submit"].bg-primary,
.bg-primary button,
.bg-primary a {
  color: var(--color-text-inverse) !important;
}

button.bg-primary:hover,
a.bg-primary:hover,
input[type="submit"].bg-primary:hover,
.bg-primary:hover button,
.bg-primary:hover a {
  color: var(--color-text-inverse) !important;
}

/* Secondary buttons with primary hover */
.bg-bg-tertiary.hover\:bg-primary-hover:hover,
a.bg-bg-tertiary.hover\:bg-primary-hover:hover,
button.bg-bg-tertiary.hover\:bg-primary-hover:hover {
  color: var(--color-text-inverse) !important;
}

/* Any element with bg-primary or hover:bg-primary-hover should have white text on hover */
.hover\:bg-primary-hover:hover {
  color: var(--color-text-inverse) !important;
}

/* Ensure text-text-inverse always shows white text */
.text-text-inverse {
  color: var(--color-text-inverse) !important;
}

/* ============================================
   CARDS - Glassmorphism Effect
   ============================================ */

.bg-bg-primary {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 4px 6px -1px var(--color-shadow-sm), 0 2px 4px -1px var(--color-shadow-sm);
}

/* Glass effect utility class */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 8px 32px 0 var(--color-shadow-glass);
}

/* ============================================
   TABLES
   ============================================ */

table {
  border-color: var(--color-border-primary);
}

thead {
  background-color: var(--color-bg-tertiary);
}

tbody tr:hover {
  background-color: var(--color-bg-hover);
}

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

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

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

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

.border-primary {
  border-color: var(--color-border-primary);
}