/* ============================================================
   EZZO.SG — Design Tokens
   Architectural luxury palette for premium Singapore market
   ============================================================ */

:root,
[data-theme="light"] {
  /* ── Type Scale ─────────────────────────────── */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* ── Spacing (4px base) ──────────────────────── */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ── EZZO Architectural Palette — Light ──────── */
  /* Surfaces: cool off-white / warm pale grey */
  --color-bg:              #f4f5f6;
  --color-surface:         #f8f9fa;
  --color-surface-2:       #ffffff;
  --color-surface-offset:  #eceef0;
  --color-surface-offset-2:#e4e6e9;
  --color-surface-dynamic: #d8dade;
  --color-divider:         #d0d3d8;
  --color-border:          #c4c8ce;

  /* Text: deep navy → slate muted */
  --color-text:        #1a2535;
  --color-text-muted:  #5a6475;
  --color-text-faint:  #9aa3b0;
  --color-text-inverse:#f4f5f6;

  /* Primary accent: deep navy blue (architectural) */
  --color-primary:          #1a3a5c;
  --color-primary-hover:    #142e4a;
  --color-primary-active:   #0e2237;
  --color-primary-highlight:#ccd5e0;

  /* Secondary: warm metallic gold/bronze (premium) */
  --color-accent:           #b08a4a;
  --color-accent-hover:     #8d6e39;
  --color-accent-active:    #6a5229;
  --color-accent-highlight: #eedfc4;

  /* Status */
  --color-success:   #2e6b3e;
  --color-warning:   #9a5a10;
  --color-error:     #9b2c2c;

  /* ── Radius ────────────────────────────────── */
  --radius-sm:   0.25rem;
  --radius-md:   0.375rem;
  --radius-lg:   0.625rem;
  --radius-xl:   1rem;
  --radius-full: 9999px;

  /* ── Transitions ────────────────────────────── */
  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow:        400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ── Shadows ────────────────────────────────── */
  --shadow-sm: 0 1px 3px oklch(0.2 0.02 240 / 0.08);
  --shadow-md: 0 4px 16px oklch(0.2 0.02 240 / 0.10);
  --shadow-lg: 0 12px 40px oklch(0.2 0.02 240 / 0.15);
  --shadow-xl: 0 24px 64px oklch(0.2 0.02 240 / 0.20);

  /* ── Content widths ─────────────────────────── */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1240px;
  --content-full:    100%;

  /* ── Fonts ──────────────────────────────────── */
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body:    'Switzer', 'Helvetica Neue', sans-serif;
  --font-ui:      'Switzer', 'Helvetica Neue', sans-serif;
}

/* ── Dark Mode ────────────────────────────────── */
[data-theme="dark"] {
  --color-bg:              #0e1520;
  --color-surface:         #121b28;
  --color-surface-2:       #172030;
  --color-surface-offset:  #1a2535;
  --color-surface-offset-2:#1f2c3e;
  --color-surface-dynamic: #263345;
  --color-divider:         #2a3a50;
  --color-border:          #324256;

  --color-text:        #dce4ed;
  --color-text-muted:  #8a9ab0;
  --color-text-faint:  #4a5870;
  --color-text-inverse:#0e1520;

  --color-primary:          #4a7aaa;
  --color-primary-hover:    #5e8dbe;
  --color-primary-active:   #7aa0cc;
  --color-primary-highlight:#1a2e45;

  --color-accent:           #c9a060;
  --color-accent-hover:     #dab878;
  --color-accent-active:    #eace92;
  --color-accent-highlight: #3a2c1a;

  --color-success:   #4d9e62;
  --color-warning:   #c07a30;
  --color-error:     #c45a5a;

  --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
  --shadow-xl: 0 24px 64px oklch(0 0 0 / 0.55);
}

/* ── System preference fallback ─────────────────── */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:              #0e1520;
    --color-surface:         #121b28;
    --color-surface-2:       #172030;
    --color-surface-offset:  #1a2535;
    --color-surface-offset-2:#1f2c3e;
    --color-surface-dynamic: #263345;
    --color-divider:         #2a3a50;
    --color-border:          #324256;
    --color-text:        #dce4ed;
    --color-text-muted:  #8a9ab0;
    --color-text-faint:  #4a5870;
    --color-text-inverse:#0e1520;
    --color-primary:          #4a7aaa;
    --color-primary-hover:    #5e8dbe;
    --color-primary-active:   #7aa0cc;
    --color-primary-highlight:#1a2e45;
    --color-accent:           #c9a060;
    --color-accent-hover:     #dab878;
    --color-accent-active:    #eace92;
    --color-accent-highlight: #3a2c1a;
    --shadow-sm: 0 1px 3px oklch(0 0 0 / 0.25);
    --shadow-md: 0 4px 16px oklch(0 0 0 / 0.35);
    --shadow-lg: 0 12px 40px oklch(0 0 0 / 0.45);
    --shadow-xl: 0 24px 64px oklch(0 0 0 / 0.55);
  }
}