/* ==========================================================================
   KAYAN LUXURY FASHION — DESIGN SYSTEM TOKENS
   ========================================================================== */

:root {
  /* --- Brand Primitives --- */
  --brand-raw-alabaster: #FAF9F5;
  --brand-bone-muted: #F1EFEA;
  --brand-surface-white: #FFFFFF;
  --brand-obsidian-ink: #111113;
  --brand-obsidian-soft: #1E1E22;
  --brand-terracotta-gold: #C98A4C;
  --brand-bronze-light: #D4A373;
  --brand-warm-stone: #E5E2DC;

  /* --- Light Theme (Default) --- */
  --color-bg: var(--brand-raw-alabaster);
  --color-bg-secondary: var(--brand-bone-muted);
  --color-surface: var(--brand-surface-white);
  --color-surface-hover: #F8F7F4;
  --color-surface-glass: rgba(255, 255, 255, 0.82);
  --color-surface-elevated: #FFFFFF;

  --color-text: var(--brand-obsidian-ink);
  --color-text-muted: #64625D;
  --color-text-subtle: #98948C;
  --color-text-inverse: var(--brand-raw-alabaster);

  --color-border: var(--brand-warm-stone);
  --color-border-subtle: #EEECE7;
  --color-border-strong: #BCB8B0;

  --color-primary: var(--brand-obsidian-ink);
  --color-primary-hover: #26262B;
  --color-primary-contrast: var(--brand-raw-alabaster);

  --color-accent: var(--brand-terracotta-gold);
  --color-accent-hover: #B2773B;
  --color-accent-subtle: rgba(201, 138, 76, 0.12);
  --color-accent-contrast: #FFFFFF;

  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-sale: #DC2626;
  --color-sale-subtle: rgba(220, 38, 38, 0.1);

  /* --- Shadows --- */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 12px 28px -6px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 48px -8px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 32px 64px -12px rgba(0, 0, 0, 0.18);
  --shadow-accent: 0 8px 24px rgba(201, 138, 76, 0.25);

  /* --- Typography --- */
  --font-display: 'Syne', 'Playfair Display', Georgia, serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-arabic: 'Tajawal', 'Cairo', system-ui, sans-serif;

  /* Fluid Type Scale */
  --text-2xs: clamp(0.65rem, 0.62rem + 0.15vw, 0.72rem);
  --text-xs: clamp(0.75rem, 0.72rem + 0.2vw, 0.85rem);
  --text-sm: clamp(0.85rem, 0.82rem + 0.25vw, 0.95rem);
  --text-base: clamp(0.95rem, 0.92rem + 0.3vw, 1.05rem);
  --text-md: clamp(1.1rem, 1.05rem + 0.4vw, 1.25rem);
  --text-lg: clamp(1.25rem, 1.18rem + 0.6vw, 1.55rem);
  --text-xl: clamp(1.55rem, 1.45rem + 0.9vw, 2.1rem);
  --text-2xl: clamp(2rem, 1.75rem + 1.4vw, 2.9rem);
  --text-3xl: clamp(2.6rem, 2.2rem + 2.2vw, 4.2rem);
  --text-hero: clamp(3.2rem, 2.6rem + 4.2vw, 6.8rem);

  /* --- Spacing System --- */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4.5rem;
  --space-3xl: 6.5rem;
  --space-4xl: 9rem;

  /* Container & Layout */
  --container-max: 1560px;
  --container-narrow: 1200px;
  --container-reading: 840px;
  --header-height: 80px;
  --announcement-height: 40px;

  /* Radius */
  --radius-xs: 3px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Transitions & Motion Curves */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out-quart: cubic-bezier(0.76, 0, 0.24, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  --duration-fast: 180ms;
  --duration-normal: 320ms;
  --duration-medium: 500ms;
  --duration-slow: 850ms;
  --duration-deliberate: 1200ms;

  /* Z-Index Hierarchy */
  --z-negative: -1;
  --z-base: 1;
  --z-sticky: 50;
  --z-header: 100;
  --z-megamenu: 110;
  --z-floating-bar: 150;
  --z-drawer: 200;
  --z-modal: 300;
  --z-toast: 400;
  --z-cursor: 999;
  --z-preloader: 1000;
  --z-transition-wipe: 1100;
}

/* --- Dark Theme Overrides --- */
[data-theme="dark"] {
  --color-bg: #0A0A0C;
  --color-bg-secondary: #121216;
  --color-surface: #18181D;
  --color-surface-hover: #222229;
  --color-surface-glass: rgba(24, 24, 29, 0.85);
  --color-surface-elevated: #202026;

  --color-text: #F6F4F0;
  --color-text-muted: #9E9B93;
  --color-text-subtle: #68655E;
  --color-text-inverse: #0A0A0C;

  --color-border: #282830;
  --color-border-subtle: #1C1C22;
  --color-border-strong: #3D3D48;

  --color-primary: #F6F4F0;
  --color-primary-hover: #E3E0D8;
  --color-primary-contrast: #0A0A0C;

  --color-accent: var(--brand-bronze-light);
  --color-accent-hover: #E2B384;
  --color-accent-subtle: rgba(212, 163, 115, 0.16);
  --color-accent-contrast: #0A0A0C;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 12px 30px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.65);
  --shadow-xl: 0 32px 70px rgba(0, 0, 0, 0.75);
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}