/* style.css — CMB Law Design Tokens */

/* ─── Fonts ─── */
/* DM Sans for body, Plus Jakarta Sans for display */

/* ─── Type Scale ─── */
:root {
  --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,     0.9rem  + 0.5vw,  1.125rem);
  --text-lg:   clamp(1.125rem, 0.95rem + 0.85vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1rem    + 1.5vw,  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);

  /* ─── Font Families ─── */
  --font-display: 'Plus Jakarta Sans', 'DM Sans', sans-serif;
  --font-body: 'DM Sans', 'Plus Jakarta Sans', sans-serif;

  /* ─── 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;

  /* ─── Radius ─── */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* ─── Transitions ─── */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ─── Content Widths ─── */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

/* ─── Light Mode (Default) ─── */
:root, [data-theme="light"] {
  /* Surfaces — clean whites & warm light grays */
  --color-bg:               #F8F9FA;
  --color-surface:          #FFFFFF;
  --color-surface-2:        #F1F3F5;
  --color-surface-offset:   #E9ECF0;
  --color-surface-offset-2: #DEE2E6;
  --color-surface-dynamic:  #D5DAE0;
  --color-divider:          #CED4DA;
  --color-border:           #C1C9D1;

  /* Text */
  --color-text:             #1A1D23;
  --color-text-muted:       #6B7280;
  --color-text-faint:       #9CA3AF;
  --color-text-inverse:     #F8F9FA;

  /* Primary — CMB Logo Navy */
  --color-primary:          #000080;
  --color-primary-hover:    #000066;
  --color-primary-active:   #00004D;
  --color-primary-highlight: #D0D0F0;

  /* Accent — CMB Logo Navy */
  --color-accent:           #000080;
  --color-accent-hover:     #000066;
  --color-accent-active:    #00004D;
  --color-accent-highlight: #D0D0F0;

  /* Semantic */
  --color-error:            #DC2626;
  --color-success:          #16A34A;
  --color-warning:          #D97706;

  /* Shadows (tone-matched) */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 240 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.02 240 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.02 240 / 0.12);
}

/* ─── Dark Mode ─── */
[data-theme="dark"] {
  /* Surfaces — deep navy-blacks */
  --color-bg:               #0C1220;
  --color-surface:          #111827;
  --color-surface-2:        #161E2E;
  --color-surface-offset:   #1C2536;
  --color-surface-offset-2: #232D40;
  --color-surface-dynamic:  #2A354A;
  --color-divider:          #2E3A50;
  --color-border:           #374357;

  /* Text */
  --color-text:             #E5E7EB;
  --color-text-muted:       #9CA3AF;
  --color-text-faint:       #6B7280;
  --color-text-inverse:     #111827;

  /* Primary — lighter navy for contrast */
  --color-primary:          #94A3C8;
  --color-primary-hover:    #A8B5D4;
  --color-primary-active:   #B8C4DF;
  --color-primary-highlight: #1E2940;

  /* Accent — lighter teal */
  --color-accent:           #2DD4BF;
  --color-accent-hover:     #5EEAD4;
  --color-accent-active:    #99F6E4;
  --color-accent-highlight: #0F2E2A;

  /* Semantic */
  --color-error:            #F87171;
  --color-success:          #4ADE80;
  --color-warning:          #FBBF24;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:               #0C1220;
    --color-surface:          #111827;
    --color-surface-2:        #161E2E;
    --color-surface-offset:   #1C2536;
    --color-surface-offset-2: #232D40;
    --color-surface-dynamic:  #2A354A;
    --color-divider:          #2E3A50;
    --color-border:           #374357;
    --color-text:             #E5E7EB;
    --color-text-muted:       #9CA3AF;
    --color-text-faint:       #6B7280;
    --color-text-inverse:     #111827;
    --color-primary:          #94A3C8;
    --color-primary-hover:    #A8B5D4;
    --color-primary-active:   #B8C4DF;
    --color-primary-highlight: #1E2940;
    --color-accent:           #2DD4BF;
    --color-accent-hover:     #5EEAD4;
    --color-accent-active:    #99F6E4;
    --color-accent-highlight: #0F2E2A;
    --color-error:            #F87171;
    --color-success:          #4ADE80;
    --color-warning:          #FBBF24;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
    --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}