/* Base styles + reusable components shared by every site.
   Import tokens.css before this file. */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img, video, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: var(--leading-tight); margin: 0 0 var(--space-4); }
h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
p { margin: 0 0 var(--space-4); color: var(--color-text-muted); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

/* Reduce motion for users who ask for it */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.section {
  padding-block: var(--space-10);
}
.section--tight { padding-block: var(--space-8); }
.section--alt { background: var(--color-bg-alt); }

/* Break content into scannable chunks */
.stack > * + * { margin-top: var(--space-5); }
.grid {
  display: grid;
  gap: var(--space-6);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.eyebrow {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

/* ---------- Navigation ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.site-nav__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.site-nav__brand { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; text-decoration: none; }
.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav__links a {
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
}
.site-nav__toggle {
  display: none;
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
  border: none;
  background: transparent;
  cursor: pointer;
}
@media (max-width: 780px) {
  .site-nav__links {
    position: fixed;
    inset: var(--nav-height) 0 0 0;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-6) var(--space-5);
    gap: var(--space-2);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease), transform var(--duration-base) var(--ease);
  }
  .site-nav__links a { min-height: 52px; width: 100%; border-bottom: 1px solid var(--color-border); }
  .site-nav__links.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav__toggle { display: block; }
}

/* ---------- Buttons: one obvious primary action per screen ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-target-min);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease), background-color var(--duration-fast) var(--ease), box-shadow var(--duration-fast) var(--ease);
}
.btn:active { transform: scale(0.97); }
.btn--primary { background: var(--color-accent); color: var(--color-accent-contrast); box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--color-accent-hover); box-shadow: var(--shadow-md); }
.btn--secondary { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--secondary:hover { border-color: var(--color-text); }
.btn--block { width: 100%; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: box-shadow var(--duration-base) var(--ease), transform var(--duration-base) var(--ease);
}
.card--link { text-decoration: none; color: inherit; display: block; }
.card--link:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card__media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-4);
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
}
.card__media img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- Forms: prevent errors, make recovery easy ---------- */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field label { font-size: var(--text-sm); font-weight: 600; }
.field input,
.field textarea,
.field select {
  min-height: var(--touch-target-min);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--color-text);
  background: var(--color-surface);
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--color-accent);
}
.field--invalid input, .field--invalid textarea { border-color: var(--color-error); }
.field__hint { font-size: var(--text-xs); color: var(--color-text-muted); }
.field__error { font-size: var(--text-xs); color: var(--color-error); display: none; }
.field--invalid .field__error { display: block; }

/* ---------- Visible progress (multi-step forms, uploads) ---------- */
.progress { display: flex; align-items: center; gap: var(--space-2); }
.progress__step {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-border);
  transition: background var(--duration-base) var(--ease);
}
.progress__step.is-done, .progress__step.is-active { background: var(--color-accent); }

/* ---------- Badges / tags ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
}

/* ---------- Accessibility utilities ---------- */
.visually-hidden {
  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: -100%;
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}
.skip-link:focus { top: var(--space-2); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  padding-block: var(--space-4);
  font-size: var(--text-sm);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--color-text-muted);
}
.breadcrumbs a {
  text-decoration: none;
  color: var(--color-text-muted);
}
.breadcrumbs a:hover { color: var(--color-accent); }
.breadcrumbs li:not(:last-child)::after {
  content: "/";
  margin-left: var(--space-2);
  color: var(--color-border);
}
.breadcrumbs li[aria-current="page"] { color: var(--color-text); font-weight: 600; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ---------- Load-in stagger (for above-the-fold hero content) ---------- */
@keyframes rise-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.load-stagger > * {
  opacity: 0;
  animation: rise-in 0.8s var(--ease) forwards;
}
.load-stagger > *:nth-child(1) { animation-delay: 0.05s; }
.load-stagger > *:nth-child(2) { animation-delay: 0.18s; }
.load-stagger > *:nth-child(3) { animation-delay: 0.31s; }
.load-stagger > *:nth-child(4) { animation-delay: 0.44s; }
.load-stagger > *:nth-child(5) { animation-delay: 0.57s; }
@media (prefers-reduced-motion: reduce) {
  .load-stagger > * { opacity: 1; animation: none; }
}

/* ---------- Scroll reveal (memorable, non-distracting) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-slow) var(--ease), transform var(--duration-slow) var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }