/* =============================================================
   CVD — Components: Nav + Footer (Session 2)
   Depends on styles/foundation.css (tokens + .nav-link primitive)
   ============================================================= */

/* ---- Page shell helper ------------------------------------ */
.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.page__main { flex: 1 0 auto; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-margin);
}
@media (max-width: 720px) {
  .container { padding: 0 var(--page-margin-mob); }
}

/* =============================================================
   NAV
   - sticky, --nav-height, background matches page (no contrast)
   - hairline border-bottom appears only after 80px scroll
   ============================================================= */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--color-bg);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-soft);
}
.site-nav.is-scrolled { border-bottom-color: var(--color-border); }

.site-nav__inner {
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-margin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
@media (max-width: 720px) {
  .site-nav__inner { padding: 0 var(--page-margin-mob); }
}

/* Wordmark — typographic logo in the display face.
   (Drop a final vector mark in here later if licensed.) */
.wordmark {
  font-family: var(--font-display);
  font-variation-settings: 'wdth' var(--display-wdth);
  font-weight: var(--weight-medium);
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--color-text);
  line-height: 1;
  display: inline-flex;
  align-items: center;
}
.wordmark:hover { color: var(--color-text); }
/* Logo mark in the nav (replaces the typographic "CVD") */
.wordmark__img { height: 24px; width: auto; display: block; }
.nav-overlay__bar .wordmark__img { height: 26px; }

/* ---- Card images (featured + grid + project media) ---- */
.card-img { display: block; width: 100%; overflow: hidden; }
.card-img img,
.card-img video { display: block; width: 100%; height: 100%; object-fit: cover; }
.card-img iframe { display: block; width: 100%; height: 100%; border: 0; }

/* Desktop links */
.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

/* Hamburger — two-line, hidden on desktop. 44×44 hit area, edge-aligned. */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  position: relative;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 8px;
  width: 28px;
  height: 1px;
  background: var(--color-text);
  transition: transform var(--dur-fast) var(--ease-soft),
              opacity var(--dur-fast) var(--ease-soft);
}
.nav-toggle span:nth-child(1) { top: calc(50% - 3px); }
.nav-toggle span:nth-child(2) { top: calc(50% + 3px); }

/* =============================================================
   FULL-SCREEN MOBILE OVERLAY
   ============================================================= */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-mid) var(--ease-soft),
              visibility 0s linear var(--dur-mid);
}
.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--dur-mid) var(--ease-soft);
}

.nav-overlay__bar {
  height: var(--nav-height);
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-margin-mob);
}
.nav-overlay__close {
  width: 44px;
  height: 44px;
  margin-right: -10px;
  position: relative;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}
.nav-overlay__close::before,
.nav-overlay__close::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 10px;
  right: 10px;
  height: 1px;
  background: var(--color-text);
}
.nav-overlay__close::before { transform: rotate(45deg); }
.nav-overlay__close::after  { transform: rotate(-45deg); }

.nav-overlay__links {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-5);
  padding: 0 var(--page-margin-mob) var(--space-9);
}
.nav-overlay__links a {
  font-family: var(--font-body);
  font-size: var(--type-h2);
  font-weight: var(--weight-regular);
  color: var(--color-text);
  letter-spacing: -0.005em;
  /* staggered entrance, set up by .is-open */
  opacity: 0;
  transform: translateY(12px);
}
.nav-overlay.is-open .nav-overlay__links a {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-slow) var(--ease-soft),
              transform var(--dur-slow) var(--ease-soft);
}
.nav-overlay.is-open .nav-overlay__links a:nth-child(1) { transition-delay: 0.08s; }
.nav-overlay.is-open .nav-overlay__links a:nth-child(2) { transition-delay: 0.16s; }
.nav-overlay.is-open .nav-overlay__links a:nth-child(3) { transition-delay: 0.24s; }
.nav-overlay__meta {
  flex: 0 0 auto;
  padding: var(--space-5) var(--page-margin-mob) var(--space-6);
  font-size: var(--type-micro);
  letter-spacing: var(--track-micro);
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Lock scroll when overlay open */
body.nav-open { overflow: hidden; }

/* =============================================================
   RESPONSIVE — swap desktop links for hamburger
   ============================================================= */
@media (max-width: 720px) {
  .site-nav__links { display: none; }
  .nav-toggle { display: block; }
}

/* =============================================================
   FOOTER
   ============================================================= */
.site-footer {
  flex: 0 0 auto;
  border-top: 1px solid var(--color-border);
  min-height: 64px;
  display: flex;
  align-items: center;
}
.site-footer__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-margin);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.site-footer__inner > * {
  font-size: var(--type-micro);
  letter-spacing: var(--track-micro);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0;
}
/* footer links sit on the muted baseline, darken on hover */
.site-footer a { color: var(--color-text-muted); }
.site-footer a:hover { color: var(--color-text); }
.site-footer__sep { color: var(--color-text-subtle); }

@media (max-width: 720px) {
  .site-footer__inner { padding: 0 var(--page-margin-mob); }
}
@media (max-width: 560px) {
  .site-footer {
    align-items: stretch;
    padding: var(--space-5) 0;
  }
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-overlay,
  .nav-overlay.is-open .nav-overlay__links a {
    transition: none;
  }
  .nav-overlay__links a { opacity: 1; transform: none; }
}

/* =============================================================
   CUSTOM CURSOR (desktop / fine-pointer only)
   Requires <div class="cursor-dot" id="cursor"></div> + site.js
   ============================================================= */
.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 12px;
  height: 12px;
  border: 1px solid var(--color-text);
  border-radius: 50%;
  background: transparent;
  pointer-events: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.75);
  transition: width var(--dur-fast) var(--ease-soft),
              height var(--dur-fast) var(--ease-soft),
              background var(--dur-fast) var(--ease-soft);
  will-change: transform;
}
.cursor-dot.is-big { width: 40px; height: 40px; background: rgba(17, 16, 16, 0.06); }
@media (hover: hover) and (pointer: fine) {
  html.cursor-on body,
  html.cursor-on body a,
  html.cursor-on body button { cursor: none; }
}
@media (hover: none), (pointer: coarse) {
  .cursor-dot { display: none; }
}

/* =============================================================
   PROSE — About bio + legal pages (Imprint, Privacy)
   ============================================================= */
.prose { max-width: var(--max-width-text); }
.prose > h1 { margin-bottom: var(--space-6); }
.prose h2 {
  font-family: var(--font-body);
  font-size: var(--type-h3);
  font-weight: var(--weight-regular);
  letter-spacing: -0.005em;
  margin: var(--space-7) 0 var(--space-3);
}
.prose p,
.prose li {
  font-size: var(--type-body);
  line-height: var(--leading-body);
  color: var(--color-text);
}
.prose p { margin: 0 0 var(--space-4); }
.prose p:last-child { margin-bottom: 0; }
.prose a {
  border-bottom: 1px solid var(--color-border);
  transition: border-color var(--dur-fast) var(--ease-soft),
              color var(--dur-fast) var(--ease-soft);
}
.prose a:hover { border-color: var(--color-text); }
.prose .lead {
  font-size: var(--type-h3);
  line-height: 1.5;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.prose__updated {
  font-size: var(--type-micro);
  letter-spacing: var(--track-micro);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-8);
}
.prose address {
  font-style: normal;
  line-height: var(--leading-body);
  font-size: var(--type-body);
}

/* ---- Web component wrappers (nav-footer.js) ------------------
   display: contents makes <site-nav> and <site-footer> transparent
   to the .page flexbox — their children (<nav>, <footer>) become
   direct flex children, exactly as if the tags weren't there. */
site-nav,
site-footer { display: contents; }