/**
 * Themes - SOLVUH Platform
 * ========================
 * Theme definitions for light, dark, and high-contrast modes.
 */

/* ============================================
   DARK THEME (Default)
   ============================================ */
:root,
[data-theme="dark"],
.theme-dark {
  /* Background colors */
  --bg-primary: #0d0d14;
  --bg-secondary: #16162a;
  --bg-tertiary: #1e1e3a;
  --bg-elevated: #252542;
  --bg-overlay: rgba(0, 0, 0, 0.7);
  --bg-hover: rgba(255, 255, 255, 0.05);
  --bg-active: rgba(255, 255, 255, 0.08);

  /* Text colors */
  --text-primary: #f0f0f5;
  --text-secondary: #a8a8b3;
  --text-muted: #6b6b7b;
  --text-inverse: #0d0d14;

  /* Border colors */
  --border-color: rgba(255, 255, 255, 0.1);
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-strong: rgba(255, 255, 255, 0.2);

  /* Accent colors */
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-primary-active: #4f46e5;
  --color-primary-muted: rgba(99, 102, 241, 0.15);

  /* Semantic colors */
  --color-success: #10b981;
  --color-success-hover: #34d399;
  --color-success-muted: rgba(16, 185, 129, 0.15);

  --color-warning: #f59e0b;
  --color-warning-hover: #fbbf24;
  --color-warning-muted: rgba(245, 158, 11, 0.15);

  --color-danger: #ef4444;
  --color-danger-hover: #f87171;
  --color-danger-muted: rgba(239, 68, 68, 0.15);

  --color-info: #3b82f6;
  --color-info-hover: #60a5fa;
  --color-info-muted: rgba(59, 130, 246, 0.15);

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

  /* Focus ring */
  --focus-ring: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--color-primary);

  /* Scrollbar */
  --scrollbar-track: var(--bg-secondary);
  --scrollbar-thumb: var(--bg-tertiary);
  --scrollbar-thumb-hover: var(--bg-elevated);
}

/* ============================================
   LIGHT THEME
   ============================================ */
[data-theme="light"],
.theme-light {
  /* Background colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f1f3f5;
  --bg-elevated: #ffffff;
  --bg-overlay: rgba(0, 0, 0, 0.5);
  --bg-hover: rgba(0, 0, 0, 0.04);
  --bg-active: rgba(0, 0, 0, 0.08);

  /* Text colors */
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a5c;
  --text-muted: #8b8b9c;
  --text-inverse: #ffffff;

  /* Border colors */
  --border-color: rgba(0, 0, 0, 0.1);
  --border-subtle: rgba(0, 0, 0, 0.05);
  --border-strong: rgba(0, 0, 0, 0.2);

  /* Accent colors */
  --color-primary: #4f46e5;
  --color-primary-hover: #6366f1;
  --color-primary-active: #4338ca;
  --color-primary-muted: rgba(79, 70, 229, 0.1);

  /* Semantic colors */
  --color-success: #059669;
  --color-success-hover: #10b981;
  --color-success-muted: rgba(5, 150, 105, 0.1);

  --color-warning: #d97706;
  --color-warning-hover: #f59e0b;
  --color-warning-muted: rgba(217, 119, 6, 0.1);

  --color-danger: #dc2626;
  --color-danger-hover: #ef4444;
  --color-danger-muted: rgba(220, 38, 38, 0.1);

  --color-info: #2563eb;
  --color-info-hover: #3b82f6;
  --color-info-muted: rgba(37, 99, 235, 0.1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* Focus ring */
  --focus-ring: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--color-primary);

  /* Scrollbar */
  --scrollbar-track: var(--bg-secondary);
  --scrollbar-thumb: #c1c1c9;
  --scrollbar-thumb-hover: #a1a1aa;
}

/* ============================================
   HIGH CONTRAST THEME
   ============================================ */
[data-theme="high-contrast"],
.theme-high-contrast {
  /* Background colors */
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-tertiary: #141414;
  --bg-elevated: #1a1a1a;
  --bg-overlay: rgba(0, 0, 0, 0.9);
  --bg-hover: rgba(255, 255, 255, 0.1);
  --bg-active: rgba(255, 255, 255, 0.15);

  /* Text colors */
  --text-primary: #ffffff;
  --text-secondary: #e0e0e0;
  --text-muted: #b0b0b0;
  --text-inverse: #000000;

  /* Border colors */
  --border-color: rgba(255, 255, 255, 0.3);
  --border-subtle: rgba(255, 255, 255, 0.15);
  --border-strong: rgba(255, 255, 255, 0.5);

  /* Accent colors */
  --color-primary: #7c7cff;
  --color-primary-hover: #9999ff;
  --color-primary-active: #5f5fff;
  --color-primary-muted: rgba(124, 124, 255, 0.2);

  /* Semantic colors */
  --color-success: #22ff88;
  --color-success-hover: #55ffaa;
  --color-success-muted: rgba(34, 255, 136, 0.2);

  --color-warning: #ffcc00;
  --color-warning-hover: #ffdd44;
  --color-warning-muted: rgba(255, 204, 0, 0.2);

  --color-danger: #ff4444;
  --color-danger-hover: #ff7777;
  --color-danger-muted: rgba(255, 68, 68, 0.2);

  --color-info: #44aaff;
  --color-info-hover: #77ccff;
  --color-info-muted: rgba(68, 170, 255, 0.2);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.7);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.8);

  /* Focus ring */
  --focus-ring: 0 0 0 3px #ffffff, 0 0 0 5px var(--color-primary);
}

/* ============================================
   SYSTEM PREFERENCE DETECTION
   ============================================ */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    /* Inherit light theme variables */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5c;
    /* ... other light theme overrides */
  }
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* ============================================
   THEME TRANSITION
   ============================================ */
.theme-transition,
.theme-transition *,
.theme-transition *::before,
.theme-transition *::after {
  transition: background-color 0.3s ease,
              color 0.3s ease,
              border-color 0.3s ease,
              box-shadow 0.3s ease !important;
}