/* Design tokens — Clinical Integrity Group */
: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(2.75rem, 0.5rem + 6.5vw, 7rem);

  /* Spacing */
  --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;

  /* Colors — Clinical & Authoritative */
  --color-bg: #FBF9F4;          /* ivory cream */
  --color-surface: #FFFFFF;
  --color-surface-2: #F5F1E8;   /* warm sand */
  --color-surface-offset: #EFE9DB;
  --color-divider: #DED5C2;
  --color-border: #C9BE9F;

  --color-text: #14213D;        /* deep navy */
  --color-text-muted: #4A5573;
  --color-text-faint: #8B95A8;
  --color-text-inverse: #FBF9F4;

  --color-primary: #14213D;     /* deep navy */
  --color-primary-hover: #0B1428;
  --color-primary-active: #050A1A;
  --color-primary-highlight: #D8DDE6;

  --color-accent: #B08D3F;      /* warm gold */
  --color-accent-hover: #946F26;
  --color-accent-active: #735314;
  --color-accent-highlight: #EFE5CC;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 220ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(20, 33, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(20, 33, 61, 0.08);
  --shadow-lg: 0 20px 50px rgba(20, 33, 61, 0.12);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 1040px;
  --content-wide: 1240px;

  /* Fonts */
  --font-display: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

[data-theme="dark"] {
  --color-bg: #0B1428;
  --color-surface: #14213D;
  --color-surface-2: #1A2A4D;
  --color-surface-offset: #1F3056;
  --color-divider: #2A3A5E;
  --color-border: #3A4B70;
  --color-text: #F5F1E8;
  --color-text-muted: #B6BACE;
  --color-text-faint: #757D96;
  --color-text-inverse: #14213D;
  --color-primary: #C9BE9F;
  --color-primary-hover: #D9CFA9;
  --color-primary-active: #E5DCB5;
  --color-primary-highlight: #2A3A5E;
  --color-accent: #D4A748;
  --color-accent-hover: #E0B85F;
  --color-accent-active: #ECC675;
  --color-accent-highlight: #3A2E14;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
}

/* Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
}

img, picture, svg { display: block; max-width: 100%; height: auto; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
input, button, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
ul[role="list"] { list-style: none; }

h1, h2, h3, h4 {
  text-wrap: balance;
  line-height: 1.15;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
p { text-wrap: pretty; max-width: 70ch; }

::selection { background: var(--color-accent-highlight); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

a, button, [role="button"], input, textarea, select {
  transition: color var(--transition-interactive), background var(--transition-interactive),
              border-color var(--transition-interactive), box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}