/* ---------- Design Tokens ---------- */
:root {
  /* 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, 7.5rem);

  /* 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-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --content-narrow: 640px;
  --content-default: 1040px;
  --content-wide: 1240px;

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

  /* Fonts */
  --font-display: 'Fraunces', 'Times New Roman', Georgia, serif;
  --font-body: 'Geist', 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Geist Mono', 'JetBrains Mono', ui-monospace, monospace;
}

/* ---------- Kafendroid Brand: Navy + Cream, Cyan accent ---------- */
:root,
[data-theme='light'] {
  --color-bg: #F5F1EA;               /* warm cream paper */
  --color-surface: #FFFDF8;
  --color-surface-2: #EFEBE3;
  --color-surface-offset: #E5E0D5;
  --color-divider: #DDD6C7;
  --color-border: #C8C0AE;

  --color-ink: #0B1B2E;              /* deep navy — primary dark */
  --color-ink-2: #14263D;
  --color-text: #0B1B2E;
  --color-text-muted: #4C5A6E;
  --color-text-faint: #8A9099;

  --color-accent: #22D3EE;           /* electric cyan */
  --color-accent-2: #0EA5C9;
  --color-accent-hover: #06B6D4;
  --color-accent-glow: rgba(34, 211, 238, 0.35);

  --color-accent-blue: #3B82F6;      /* TagAlert-leaning */
  --color-accent-blue-hover: #2563EB;

  --shadow-sm: 0 1px 2px rgba(11, 27, 46, 0.08);
  --shadow-md: 0 6px 24px rgba(11, 27, 46, 0.10);
  --shadow-lg: 0 20px 60px rgba(11, 27, 46, 0.16);
}

[data-theme='dark'] {
  --color-bg: #0A1420;
  --color-surface: #101E30;
  --color-surface-2: #142639;
  --color-surface-offset: #1A2E44;
  --color-divider: #1F3550;
  --color-border: #2A466B;

  --color-ink: #F5F1EA;
  --color-ink-2: #E7E1D3;
  --color-text: #E9E6DF;
  --color-text-muted: #93A2B6;
  --color-text-faint: #5F6E82;

  --color-accent: #22D3EE;
  --color-accent-2: #67E8F9;
  --color-accent-hover: #06B6D4;
  --color-accent-glow: rgba(34, 211, 238, 0.5);

  --color-accent-blue: #60A5FA;
  --color-accent-blue-hover: #93C5FD;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.6);
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  hanging-punctuation: first last;
  scroll-padding-top: 5rem;
}

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);
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
}

a { color: inherit; text-decoration: none; }

input, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-family: var(--font-display);
  font-weight: 400;
}

p, li, figcaption {
  text-wrap: pretty;
}

::selection {
  background: var(--color-accent);
  color: var(--color-ink);
}

: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;
    animation-iteration-count: 1 !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-width: 0;
}