/* layout.css — nav, footer, page shell. */

.site-nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 32px;
  border-bottom: 0.5px solid var(--line);
  background: var(--bg);
}

.site-nav__brand {
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--ink);
}

.site-nav__brand:hover {
  text-decoration: none;
}

.site-nav__links {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__links a {
  font-size: 13px;
  color: var(--ink-soft);
}

.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] {
  color: var(--ink);
  text-decoration: none;
}

.site-nav__links a[aria-current="page"] {
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.site-nav__auth {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
}

.site-nav__auth a {
  color: var(--ink-soft);
}

.site-nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--ink);
  cursor: pointer;
  padding: 4px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 16px 32px;
  border-top: 0.5px solid var(--line);
  font-size: 11px;
  color: var(--ink-soft);
}

.page-main {
  min-height: 88vh;
}

.page-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 32px;
}

.page-section > * + * {
  margin-top: 16px;
}

.page-intro {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 32px 40px;
}

.page-intro h1 {
  font-size: 34px;
}

.page-intro p {
  margin-top: 12px;
  color: var(--ink-soft);
}

.page-intro .button {
  margin-top: 24px;
}

.page-placeholder {
  padding: 64px 32px;
  text-align: center;
}

.page-placeholder p {
  color: var(--ink-soft);
  font-size: 14px;
  margin-top: 8px;
}

@media (max-width: 640px) {
  .site-nav {
    padding: 16px 20px;
  }

  .site-nav__toggle {
    display: block;
  }

  /* Dropdown panel: hidden until nav.js adds .is-open. z-index keeps it
     above positioned page content (e.g. a hero) that follows the nav. */
  .site-nav__links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    background: var(--bg);
    border-bottom: 0.5px solid var(--line);
    padding: 8px 20px 16px;
    box-shadow: 0 8px 16px rgba(31, 35, 40, 0.08);
    z-index: 20;
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .site-nav__links li {
    padding: 10px 0;
    border-bottom: 0.5px solid var(--line);
  }

  .site-nav__links li:last-child {
    border-bottom: none;
  }

  .page-section {
    padding: 32px 20px;
  }

  .page-intro {
    padding: 48px 20px 24px;
  }

  .site-footer {
    padding: 16px 20px;
  }
}