/**
 * Global Theme Variables
 *
 * This file defines the design system for the entire application.
 * All colors, spacing, typography, and other design tokens are centralized here.
 *
 * Usage: var(--variable-name)
 * Example: color: var(--color-primary);
 */

:root {
  /* ============================================
     COLOR PALETTE
     ============================================ */

  /* Primary Colors */
  --color-primary: dodgerblue;
  --color-primary-hover: #1677d2;
  --color-primary-light: #dceeff;
  --color-primary-dark: #0f5db4;

  /* Secondary Colors */
  --color-secondary: #7c5a3c;
  --color-secondary-hover: #64462e;
  --color-secondary-light: #f5ede4;

  /* Accent Colors */
  --color-accent: #f59e0b;
  --color-accent-light: #fff2d8;

  /* Semantic Colors */
  --color-success: #15803d;
  --color-success-hover: #166534;
  --color-success-light: #dcfce7;

  --color-danger: #dc2626;
  --color-danger-hover: #b91c1c;
  --color-danger-light: #fee2e2;

  --color-warning: #d97706;
  --color-warning-hover: #b45309;
  --color-warning-light: #ffedd5;

  --color-info: #0369a1;
  --color-info-hover: #075985;
  --color-info-light: #dbeafe;

  /* Neutral Colors */
  --color-white: #ffffff;
  --color-black: #0f172a;
  --color-gray-50: #fcfbf8;
  --color-gray-100: #f6f3ee;
  --color-gray-200: #ebe6dd;
  --color-gray-300: #ddd4c7;
  --color-gray-400: #b6ab9a;
  --color-gray-500: #8e8579;
  --color-gray-600: #6b645b;
  --color-gray-700: #47423d;
  --color-gray-800: #2d2a27;
  --color-gray-900: #1c1917;

  /* Text Colors */
  --color-text-primary: #1f2937;
  --color-text-secondary: #5b6473;
  --color-text-muted: #8e98a8;
  --color-text-inverse: #f8fafc;
  --color-text-disabled: #9aa4b2;

  /* Background Colors */
  --color-bg-body: #f4f1ea;
  --color-bg-surface: rgba(255, 255, 255, 0.9);
  --color-bg-elevated: rgba(255, 255, 255, 0.98);
  --color-bg-hover: #f2f7f6;
  --color-bg-disabled: #ece7de;
  --color-bg-hero: linear-gradient(135deg, rgba(15, 118, 110, 0.12), rgba(245, 158, 11, 0.12));

  /* Border Colors */
  --color-border-light: rgba(119, 107, 91, 0.18);
  --color-border-medium: rgba(119, 107, 91, 0.32);
  --color-border-dark: rgba(91, 81, 69, 0.55);
  --color-border-disabled: rgba(148, 163, 184, 0.35);

  /* ============================================
     SPACING
     ============================================ */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* ============================================
     TYPOGRAPHY
     ============================================ */
  --font-family-base: "Aptos", "Segoe UI Variable Text", "Segoe UI", sans-serif;
  --font-family-heading: "Aptos Display", "Aptos", "Segoe UI Variable Display", "Segoe UI", sans-serif;
  --font-family-mono: "IBM Plex Mono", "Cascadia Code", "Consolas", monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.75rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.15;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* ============================================
     BORDERS & RADIUS
     ============================================ */
  --border-width-thin: 1px;
  --border-width-medium: 2px;
  --border-width-thick: 4px;

  --border-radius-sm: 10px;
  --border-radius-md: 14px;
  --border-radius-lg: 20px;
  --border-radius-xl: 28px;
  --border-radius-full: 999px;

  /* ============================================
     SHADOWS
     ============================================ */
  --shadow-sm: 0 8px 20px rgba(36, 33, 28, 0.06);
  --shadow-md: 0 16px 34px rgba(36, 33, 28, 0.1);
  --shadow-lg: 0 24px 56px rgba(36, 33, 28, 0.14);
  --shadow-xl: 0 32px 80px rgba(36, 33, 28, 0.18);
  --shadow-card: 0 14px 36px rgba(36, 33, 28, 0.09);

  /* ============================================
     TRANSITIONS
     ============================================ */
  --transition-fast: 0.15s ease;
  --transition-base: 0.24s ease;
  --transition-slow: 0.35s ease;

  /* ============================================
     Z-INDEX LAYERS
     ============================================ */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 900;
  --z-modal: 1000;
  --z-tooltip: 1100;

  /* ============================================
     LAYOUT
     ============================================ */
  --container-max-width: 560px;
  --page-max-width: 1180px;
  --container-padding: var(--spacing-md);

  /* ============================================
     COMPONENT-SPECIFIC
     ============================================ */
  --button-padding-y: 0.8rem;
  --button-padding-x: 1.25rem;
  --button-border-radius: var(--border-radius-full);
  --button-font-weight: var(--font-weight-semibold);

  --input-padding-y: 0.85rem;
  --input-padding-x: 1rem;
  --input-border-color: var(--color-border-light);
  --input-border-radius: var(--border-radius-md);
  --input-focus-border-color: var(--color-primary);
  --input-focus-shadow: 0 0 0 4px rgba(15, 118, 110, 0.12);

  --card-bg: var(--color-bg-surface);
  --card-padding: var(--spacing-lg);
  --card-border-radius: var(--border-radius-lg);
  --card-shadow: var(--shadow-card);

  --button-secondary-bg: rgba(30, 144, 255, 0.12);
  --button-secondary-hover-bg: rgba(30, 144, 255, 0.2);
  --button-secondary-border: rgba(30, 144, 255, 0.26);
  --button-secondary-border-hover: rgba(30, 144, 255, 0.42);
  --button-secondary-text: var(--color-primary-dark);

  --button-ghost-bg: rgba(30, 144, 255, 0.08);
  --button-ghost-hover-bg: rgba(30, 144, 255, 0.16);
  --button-ghost-border: rgba(30, 144, 255, 0.22);
  --button-ghost-border-hover: rgba(30, 144, 255, 0.38);
  --button-ghost-text: var(--color-primary-dark);

  --modal-backdrop-bg: rgba(15, 23, 42, 0.48);
  --modal-bg: var(--color-bg-elevated);
  --modal-border-radius: var(--border-radius-lg);
  --modal-padding: var(--spacing-lg);
  --modal-max-width: 500px;

  /* ============================================
     SIMPLIFIED ALIASES
     ============================================ */
  --primary: var(--color-primary);
  --primary-dark: var(--color-primary-dark);
  --primary-light: var(--color-primary-light);
  --danger: var(--color-danger);
  --danger-dark: var(--color-danger-hover);
  --success: var(--color-success);
  --success-light: var(--color-success-light);
  --text-primary: var(--color-text-primary);
  --text-secondary: var(--color-text-secondary);
  --background: var(--color-bg-body);
  --border: var(--color-border-light);
  --card-hover: var(--color-bg-hover);
}

[data-theme="dark"] {
  --color-primary: #5fb2ff;
  --color-primary-hover: #83c4ff;
  --color-primary-light: rgba(95, 178, 255, 0.14);
  --color-primary-dark: #2d8ff0;

  --color-secondary: #f4c27a;
  --color-secondary-hover: #ffd59e;
  --color-secondary-light: rgba(244, 194, 122, 0.12);
  --color-accent: #fbbf24;
  --color-accent-light: rgba(251, 191, 36, 0.16);

  --color-success: #4ade80;
  --color-success-hover: #86efac;
  --color-success-light: rgba(74, 222, 128, 0.16);

  --color-danger: #f87171;
  --color-danger-hover: #fca5a5;
  --color-danger-light: rgba(248, 113, 113, 0.16);

  --color-warning: #fbbf24;
  --color-warning-hover: #fcd34d;
  --color-warning-light: rgba(251, 191, 36, 0.16);

  --color-info: #38bdf8;
  --color-info-hover: #7dd3fc;
  --color-info-light: rgba(56, 189, 248, 0.16);

  --color-text-primary: #f4f7fb;
  --color-text-secondary: #b2bccb;
  --color-text-muted: #7f8aa0;
  --color-text-inverse: #0f172a;
  --color-text-disabled: #667085;

  --color-bg-body: #0f1722;
  --color-bg-surface: rgba(15, 23, 34, 0.84);
  --color-bg-elevated: rgba(20, 29, 42, 0.96);
  --color-bg-hover: rgba(30, 41, 59, 0.95);
  --color-bg-disabled: rgba(30, 41, 59, 0.7);
  --color-bg-hero: linear-gradient(135deg, rgba(45, 212, 191, 0.18), rgba(251, 191, 36, 0.16));

  --color-border-light: rgba(148, 163, 184, 0.18);
  --color-border-medium: rgba(148, 163, 184, 0.32);
  --color-border-dark: rgba(203, 213, 225, 0.48);
  --color-border-disabled: rgba(100, 116, 139, 0.3);

  --color-gray-50: #111827;
  --color-gray-100: #172030;
  --color-gray-200: #1f2937;
  --color-gray-300: #334155;
  --color-gray-400: #475569;
  --color-gray-500: #64748b;
  --color-gray-600: #94a3b8;
  --color-gray-700: #cbd5e1;
  --color-gray-800: #e2e8f0;
  --color-gray-900: #f8fafc;

  --shadow-sm: 0 10px 24px rgba(2, 6, 23, 0.24);
  --shadow-md: 0 18px 40px rgba(2, 6, 23, 0.34);
  --shadow-lg: 0 28px 60px rgba(2, 6, 23, 0.42);
  --shadow-xl: 0 42px 90px rgba(2, 6, 23, 0.5);
  --shadow-card: 0 18px 44px rgba(2, 6, 23, 0.34);

  --modal-backdrop-bg: rgba(2, 6, 23, 0.72);
  --modal-bg: var(--color-bg-elevated);
  --input-focus-shadow: 0 0 0 4px rgba(45, 212, 191, 0.18);
  --card-bg: var(--color-bg-surface);

  --button-secondary-bg: rgba(95, 178, 255, 0.18);
  --button-secondary-hover-bg: rgba(95, 178, 255, 0.28);
  --button-secondary-border: rgba(95, 178, 255, 0.3);
  --button-secondary-border-hover: rgba(131, 196, 255, 0.5);
  --button-secondary-text: #d8ecff;

  --button-ghost-bg: rgba(95, 178, 255, 0.12);
  --button-ghost-hover-bg: rgba(95, 178, 255, 0.22);
  --button-ghost-border: rgba(95, 178, 255, 0.24);
  --button-ghost-border-hover: rgba(131, 196, 255, 0.4);
  --button-ghost-text: #d8ecff;
}

@media (prefers-color-scheme: dark) {
  /* Auto mode will use data-theme attribute set by JS */
}

.dark-mode {
  --color-text-primary: #f4f7fb;
  --color-text-secondary: #b2bccb;
  --color-bg-body: #0f1722;
  --color-bg-surface: rgba(15, 23, 34, 0.84);
  --color-border-light: rgba(148, 163, 184, 0.18);
  --color-border-medium: rgba(148, 163, 184, 0.32);
}

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

.m-0 { margin: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }

.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }

.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-success { color: var(--color-success) !important; }

.font-weight-normal { font-weight: var(--font-weight-normal) !important; }
.font-weight-medium { font-weight: var(--font-weight-medium) !important; }
.font-weight-semibold { font-weight: var(--font-weight-semibold) !important; }
.font-weight-bold { font-weight: var(--font-weight-bold) !important; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }
.d-inline-block { display: inline-block !important; }

.flex-column { flex-direction: column !important; }
.flex-row { flex-direction: row !important; }
.justify-center { justify-content: center !important; }
.justify-between { justify-content: space-between !important; }
.align-center { align-items: center !important; }
.gap-1 { gap: var(--spacing-xs) !important; }
.gap-2 { gap: var(--spacing-sm) !important; }
.gap-3 { gap: var(--spacing-md) !important; }