/* ============================================
   DESIGN TOKENS — Aether Studio Portfolio
   Derived from the Cloud "A" Logo palette
   ============================================ */

:root {
  /* ── Spacing Scale ── */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* ── Typography Scale ── */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-accent: 'Caveat', cursive;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;

  /* ── Borders & Radii ── */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* ── Shadows ── */
  --shadow-sm: 0 1px 3px rgba(30, 33, 58, 0.08);
  --shadow-md: 0 4px 12px rgba(30, 33, 58, 0.12);
  --shadow-lg: 0 8px 30px rgba(30, 33, 58, 0.16);
  --shadow-xl: 0 16px 50px rgba(30, 33, 58, 0.22);
  --shadow-glow: 0 0 30px rgba(230, 235, 245, 0.2);

  /* ── Transitions ── */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 800ms;

  /* ── Layout ── */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 72px;

  /* ── Z-Index Scale ── */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* ============================================
   DARK THEME (Default)
   ============================================ */
[data-theme="dark"] {
  --color-bg-primary: #0F1229;
  --color-bg-secondary: #1A1D3A;
  --color-bg-tertiary: #252849;
  --color-bg-card: rgba(37, 40, 73, 0.6);
  --color-bg-card-hover: rgba(46, 51, 90, 0.8);
  --color-bg-glass: rgba(26, 29, 58, 0.65);

  --color-text-primary: #F0F1F8;
  --color-text-secondary: #B4B6D0;
  --color-text-tertiary: #8385A6;
  --color-text-muted: #6B6D8A;

  --color-border: rgba(150, 152, 182, 0.15);
  --color-border-hover: rgba(150, 152, 182, 0.3);

  --color-accent: #E6EBF5;
  --color-accent-hover: #F0F3FA;
  --color-accent-subtle: rgba(230, 235, 245, 0.1);
  --color-accent-glow: rgba(230, 235, 245, 0.25);

  --color-cta: #FF8A65;
  --color-cta-hover: #FFAB91;
  --color-cta-subtle: rgba(255, 138, 101, 0.1);

  --color-star: #FBBF24;
  --color-success: #34D399;
  --color-error: #FB7185;

  --color-surface-overlay: rgba(15, 18, 41, 0.8);

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.4);

  color-scheme: dark;
}

/* ============================================
   LIGHT THEME
   ============================================ */
[data-theme="light"] {
  --color-bg-primary: #F4F5F9;
  --color-bg-secondary: #FFFFFF;
  --color-bg-tertiary: #EEF0F6;
  --color-bg-card: rgba(255, 255, 255, 0.8);
  --color-bg-card-hover: rgba(255, 255, 255, 0.95);
  --color-bg-glass: rgba(244, 245, 249, 0.7);

  --color-text-primary: #1C1E36;
  --color-text-secondary: #4A4C6A;
  --color-text-tertiary: #6B6D8A;
  --color-text-muted: #9698B6;

  --color-border: rgba(46, 51, 90, 0.1);
  --color-border-hover: rgba(46, 51, 90, 0.2);

  --color-accent: #2E335A;
  --color-accent-hover: #3D4270;
  --color-accent-subtle: rgba(46, 51, 90, 0.08);
  --color-accent-glow: rgba(46, 51, 90, 0.15);

  --color-cta: #E05A3A;
  --color-cta-hover: #C94E30;
  --color-cta-subtle: rgba(224, 90, 58, 0.08);

  --color-star: #F59E0B;
  --color-success: #10B981;
  --color-error: #EF4444;

  --color-surface-overlay: rgba(244, 245, 249, 0.85);

  --shadow-card: 0 4px 24px rgba(30, 33, 58, 0.08);
  --shadow-card-hover: 0 8px 40px rgba(30, 33, 58, 0.14);

  color-scheme: light;
}