/* ============================================
   DALGONA NARA - Design System Variables
   ============================================ */

:root {
  /* ========== Colors ========== */

  /* Primary Colors */
  --color-primary-gold: #D4A574;
  --color-primary-gold-light: #E8C9A8;
  --color-primary-gold-dark: #B8895A;
  --color-primary-cream: #FFF8F0;
  --color-primary-cream-dark: #FFF0E0;

  /* Secondary Colors */
  --color-secondary-brown: #6B4423;
  --color-secondary-brown-light: #8B6243;
  --color-secondary-brown-dark: #4B2413;

  /* Accent Colors */
  --color-accent-orange: #FF8C42;
  --color-accent-orange-light: #FFA866;
  --color-accent-orange-dark: #E07030;

  /* Text Colors */
  --color-text-dark: #2C2C2C;
  --color-text-medium: #5A5A5A;
  --color-text-light: #FFFFFF;
  --color-text-muted: #7A7A7A;

  /* Gray Scale */
  --color-gray-100: #F8F8F8;
  --color-gray-200: #EFEFEF;
  --color-gray-300: #E0E0E0;
  --color-gray-400: #CCCCCC;
  --color-gray-500: #9A9A9A;
  --color-gray-600: #7A7A7A;
  --color-gray-700: #5A5A5A;
  --color-gray-800: #3A3A3A;
  --color-gray-900: #1A1A1A;

  /* Status Colors */
  --color-success: #4CAF50;
  --color-warning: #FF9800;
  --color-error: #F44336;
  --color-info: #2196F3;

  /* Background Colors */
  --bg-primary: var(--color-primary-cream);
  --bg-secondary: #FFFFFF;
  --bg-dark: var(--color-secondary-brown);
  --bg-overlay: rgba(0, 0, 0, 0.5);

  /* ========== Typography ========== */

  /* Font Family */
  --font-primary: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Noto Sans KR', sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  /* Font Sizes */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-md: 1.125rem;   /* 18px */
  --font-size-lg: 1.25rem;    /* 20px */
  --font-size-xl: 1.5rem;     /* 24px */
  --font-size-2xl: 1.875rem;  /* 30px */
  --font-size-3xl: 2.2rem;    /* 35.2px */
  --font-size-4xl: 2.75rem;   /* 44px */
  --font-size-5xl: 3.5rem;    /* 56px */

  /* Font Weights */
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-black: 900;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.4;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;
  --line-height-loose: 2;

  /* Letter Spacing */
  --letter-spacing-tight: -0.02em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.02em;
  --letter-spacing-wider: 0.05em;

  /* ========== Spacing (8px base) ========== */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 2.5rem;   /* 40px */
  --spacing-3xl: 3rem;     /* 48px */
  --spacing-4xl: 4rem;     /* 64px */
  --spacing-5xl: 5rem;     /* 80px */
  --spacing-6xl: 6rem;     /* 96px */

  /* ========== Border Radius ========== */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 15px;
  --radius-2xl: 20px;
  --radius-pill: 25px;
  --radius-full: 50%;

  /* ========== Shadows ========== */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 20px 40px rgba(0, 0, 0, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.1);

  /* Card Shadow */
  --shadow-card: 0 4px 12px rgba(107, 68, 35, 0.1);
  --shadow-card-hover: 0 8px 24px rgba(107, 68, 35, 0.15);

  /* ========== Transitions ========== */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-slower: 500ms ease;

  /* Specific Transitions */
  --transition-color: color var(--transition-normal);
  --transition-bg: background-color var(--transition-normal);
  --transition-transform: transform var(--transition-normal);
  --transition-shadow: box-shadow var(--transition-normal);
  --transition-opacity: opacity var(--transition-normal);
  --transition-all: all var(--transition-normal);

  /* ========== Z-Index Scale ========== */
  --z-behind: -1;
  --z-base: 0;
  --z-above: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-toast: 800;

  /* ========== Layout ========== */

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;

  /* Header Height */
  --header-height: 80px;
  --header-height-mobile: 60px;

  /* Grid */
  --grid-gap: var(--spacing-lg);
  --grid-gap-mobile: var(--spacing-md);

  /* ========== Breakpoints (for reference) ========== */
  /* Mobile: <= 480px */
  /* Tablet: 481px - 768px */
  /* Desktop: >= 769px */
  /* Large Desktop: >= 1200px */

  /* ========== Component Specific ========== */

  /* Buttons */
  --btn-padding-sm: 0.5rem 1rem;
  --btn-padding-md: 0.75rem 1.5rem;
  --btn-padding-lg: 1rem 2rem;
  --btn-font-size-sm: var(--font-size-sm);
  --btn-font-size-md: var(--font-size-base);
  --btn-font-size-lg: var(--font-size-md);

  /* Inputs */
  --input-padding: 0.75rem 1rem;
  --input-border-color: var(--color-gray-300);
  --input-border-focus: var(--color-primary-gold);
  --input-bg: var(--color-text-light);

  /* Cards */
  --card-padding: var(--spacing-lg);
  --card-radius: var(--radius-xl);
  --card-bg: var(--color-text-light);
}

/* ========== Dark Mode Variables (Future) ========== */
@media (prefers-color-scheme: dark) {
  :root {
    /* Can be overridden for dark mode support */
  }
}