/* base.css — Design tokens + reset */

: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, 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;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

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

  /* Font families — set in style.css */
}

/* ─── Custom Palette: Deep Navy + Warm Orange ─── */

:root,
[data-theme="light"] {
  /* Surfaces */
  --color-bg: #f8f9fb;
  --color-surface: #ffffff;
  --color-surface-2: #f3f5f8;
  --color-surface-offset: #eef1f5;
  --color-surface-offset-2: #e5e9ef;
  --color-surface-dynamic: #dde2ea;
  --color-divider: #d1d7e0;
  --color-border: #c4cbd6;

  /* Text */
  --color-text: #111827;
  --color-text-muted: #64748b;
  --color-text-faint: #94a3b8;
  --color-text-inverse: #ffffff;
  --color-heading: #253868;

  /* Primary (Deep Navy) */
  --color-primary: #1e2a4a;
  --color-primary-hover: #162040;
  --color-primary-active: #0f1730;
  --color-primary-light: #e8ecf4;
  --color-primary-highlight: #d4dbe8;

  /* Accent (Warm Orange/Amber) */
  --color-accent: #e67e22;
  --color-accent-hover: #d35400;
  --color-accent-active: #b94700;
  --color-accent-light: #fef3e2;
  --color-accent-highlight: #fde8c8;

  /* Success */
  --color-success: #16a34a;
  --color-success-hover: #15803d;
  --color-success-highlight: #dcfce7;

  /* Error */
  --color-error: #dc2626;
  --color-error-hover: #b91c1c;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0.2 0.02 250 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.02 250 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.02 250 / 0.12);
  --shadow-xl: 0 20px 48px oklch(0.2 0.02 250 / 0.16);
}

/* DARK MODE */
[data-theme="dark"] {
  --color-bg: #0f1419;
  --color-surface: #161c24;
  --color-surface-2: #1c2430;
  --color-surface-offset: #1a2230;
  --color-surface-offset-2: #212a38;
  --color-surface-dynamic: #2a3444;
  --color-divider: #2d3748;
  --color-border: #374151;

  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-faint: #64748b;
  --color-text-inverse: #111827;
  --color-heading: #8ba4d4;

  --color-primary: #8ba4d4;
  --color-primary-hover: #a3b8e0;
  --color-primary-active: #6b8bc4;
  --color-primary-light: #1e2a4a;
  --color-primary-highlight: #2a3654;

  --color-accent: #f5a623;
  --color-accent-hover: #fabb4a;
  --color-accent-active: #e6961e;
  --color-accent-light: #1e1a12;
  --color-accent-highlight: #2a2418;

  --color-success: #4ade80;
  --color-success-hover: #22c55e;
  --color-success-highlight: #1a2e1f;

  --color-error: #f87171;
  --color-error-hover: #ef4444;

  --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);
  --shadow-xl: 0 20px 48px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0f1419;
    --color-surface: #161c24;
    --color-surface-2: #1c2430;
    --color-surface-offset: #1a2230;
    --color-surface-offset-2: #212a38;
    --color-surface-dynamic: #2a3444;
    --color-divider: #2d3748;
    --color-border: #374151;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-faint: #64748b;
    --color-text-inverse: #111827;
    --color-heading: #8ba4d4;
    --color-primary: #8ba4d4;
    --color-primary-hover: #a3b8e0;
    --color-primary-active: #6b8bc4;
    --color-primary-light: #1e2a4a;
    --color-primary-highlight: #2a3654;
    --color-accent: #f5a623;
    --color-accent-hover: #fabb4a;
    --color-accent-active: #e6961e;
    --color-accent-light: #1e1a12;
    --color-accent-highlight: #2a2418;
    --color-success: #4ade80;
    --color-success-hover: #22c55e;
    --color-success-highlight: #1a2e1f;
    --color-error: #f87171;
    --color-error-hover: #ef4444;
    --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);
    --shadow-xl: 0 20px 48px oklch(0 0 0 / 0.5);
  }
}

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

html {
  -moz-text-size-adjust: none;
  -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: var(--space-16);
}

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

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

ul[role="list"],
ol[role="list"] {
  list-style: none;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  text-wrap: balance;
  line-height: 1.15;
}

p,
li,
figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

::selection {
  background: oklch(from var(--color-accent) l c h / 0.25);
  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;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

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