/*
 * WACAM base styles.
 *
 * Modern CSS reset + typography baseline + container + focus + utility
 * patterns. Token-driven; no hex values in this file (or in component
 * styles) — everything resolves through tokens.css.
 */

/* ---------- Reset ---------- */

*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Reserve scrollbar gutter so layout doesn't shift on overflow */
  scrollbar-gutter: stable;
  overflow-x: clip;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100dvh;
  overflow-x: clip;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  font-weight: var(--weight-regular);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga", "calt";
  transition: background-color var(--duration-base) var(--ease-out),
              color var(--duration-base) var(--ease-out);
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

a {
  color: var(--link);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--link-hover);
}

ul, ol { list-style: none; padding: 0; }

/* ---------- Focus ---------- */

:focus { outline: none; }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ---------- Typography ---------- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
  color: var(--ink);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); text-transform: uppercase; letter-spacing: var(--tracking-eyebrow); }

p {
  text-wrap: pretty;
  max-width: 70ch;
}

.display {
  font-family: var(--font-sans);
  font-size: clamp(var(--text-4xl), 6vw + 1rem, var(--text-7xl));
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  text-wrap: balance;
}

.display-serif {
  font-family: var(--font-serif);
  font-weight: var(--weight-regular);
  font-style: normal;
}

.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--ink-muted);
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--ink-soft);
}

.dek {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
  color: var(--ink-soft);
  font-style: italic;
}

blockquote {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-style: italic;
  line-height: var(--leading-snug);
  color: var(--ink);
  padding-left: var(--space-6);
  border-left: 3px solid var(--accent);
  max-width: 38ch;
}

cite {
  display: block;
  margin-top: var(--space-3);
  font-style: normal;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--ink-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* ---------- Container ---------- */

.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--space-6);
  max-width: var(--container-max);
}

@media (min-width: 48rem) {
  .container { padding-inline: var(--space-8); }
}

@media (min-width: 80rem) {
  .container { padding-inline: var(--space-12); }
}

.container-prose { max-width: var(--container-prose); }
.container-tight { max-width: var(--container-tight); }
.container-wide  { max-width: var(--container-wide);  }

/* ---------- Sections ---------- */

.section {
  padding-block: clamp(var(--space-12), 8vw, var(--space-24));
}

.section-tight {
  padding-block: clamp(var(--space-8), 5vw, var(--space-16));
}

/* ---------- Accessibility helpers ---------- */

.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;
}

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--brand);
  color: var(--brand-on);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-md);
  z-index: var(--z-toast);
  transform: translateY(-200%);
  transition: transform var(--duration-fast) var(--ease-out);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  color: var(--brand-on);
}

/* ---------- Utility patterns ---------- */

.stack > * + * { margin-block-start: var(--stack-gap, var(--space-4)); }
.cluster { display: flex; flex-wrap: wrap; gap: var(--cluster-gap, var(--space-3)); align-items: center; }

.text-balance { text-wrap: balance; }
.text-pretty { text-wrap: pretty; }