/* ============================================================
   GLOBAL — nav, footer, typography, shared components
   ============================================================ */

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-ink);
  background: var(--color-paper);
  /* Subtle paper texture */
  background-image:
    radial-gradient(at 20% 10%, rgba(31, 58, 46, 0.03) 0, transparent 50%),
    radial-gradient(at 80% 90%, rgba(194, 90, 62, 0.025) 0, transparent 50%);
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; line-height: 1.1; letter-spacing: -0.02em; }
.serif { font-family: var(--font-display); }
.mono-stamp { font-family: var(--font-body); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; font-size: var(--fs-tiny); }

/* Layout container */
.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ============================================================
   NAV
   ============================================================ */
.site-nav {
  padding: var(--space-6) 0;
  border-bottom: 1px solid var(--color-rule-soft);
  position: sticky;
  top: 0;
  background: var(--color-paper);
  z-index: 100;
  backdrop-filter: blur(8px);
  background-color: color-mix(in srgb, var(--color-paper) 90%, transparent);
}
.site-nav__inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-8);
}
.site-nav__brand {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}
.site-nav__brand::before {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  transform: translateY(-2px);
}
.site-nav__links {
  display: flex;
  gap: var(--space-8);
  list-style: none;
}
.site-nav__links a {
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--duration-fast) var(--ease-out);
}
.site-nav__links a:hover { color: var(--color-primary); }
.site-nav__links a.active {
  color: var(--color-primary);
  border-bottom: 1.5px solid var(--color-accent);
}
@media (max-width: 640px) {
  .site-nav__links { gap: var(--space-4); }
  .site-nav__links a { font-size: var(--fs-tiny); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--fs-small);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
  border: 1.5px solid transparent;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-paper);
}
.btn--primary:hover {
  background: var(--color-primary-soft);
  transform: translateY(-1px);
}
.btn--accent {
  background: var(--color-accent);
  color: white;
}
.btn--accent:hover {
  background: #a94830;
}
.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--ghost:hover {
  background: var(--color-primary);
  color: var(--color-paper);
}

/* ============================================================
   STATUS PILLS
   ============================================================ */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 2px var(--space-3);
  font-size: var(--fs-tiny);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 99px;
  white-space: nowrap;
}
.status::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.status--available { color: var(--color-status-available); background: var(--color-status-available-bg); }
.status--pending { color: var(--color-status-pending); background: var(--color-status-pending-bg); }
.status--out { color: var(--color-status-out); background: var(--color-status-out-bg); }

/* ============================================================
   SUBJECT TAGS (hand-stamped feel)
   ============================================================ */
.tag {
  display: inline-block;
  padding: 2px var(--space-3);
  font-size: var(--fs-tiny);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--color-rule);
  border-radius: 2px;
  color: var(--color-ink-soft);
  background: var(--color-paper-deep);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  margin-top: var(--space-24);
  padding: var(--space-12) 0 var(--space-8);
  border-top: 1px solid var(--color-rule-soft);
  background: var(--color-paper-deep);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
@media (max-width: 720px) { .site-footer__grid { grid-template-columns: 1fr; } }
.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.site-footer__tagline {
  color: var(--color-ink-soft);
  max-width: 36ch;
  font-size: var(--fs-small);
}
.site-footer__col h4 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--fs-tiny);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-3);
}
.site-footer__col ul { list-style: none; }
.site-footer__col li { margin-bottom: var(--space-2); font-size: var(--fs-small); color: var(--color-ink-soft); }
.site-footer__col a:hover { color: var(--color-accent); }
.site-footer__legal {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-rule-soft);
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-tiny);
  color: var(--color-ink-muted);
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ============================================================
   UTILITIES
   ============================================================ */
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}
.eyebrow {
  font-size: var(--fs-tiny);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-3);
}
.rule {
  height: 1px;
  background: var(--color-rule);
  margin: var(--space-12) 0;
}

/* Loading / empty states */
.empty-state {
  padding: var(--space-16) var(--space-6);
  text-align: center;
  color: var(--color-ink-muted);
  font-style: italic;
  font-family: var(--font-display);
}

/* Toast */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: var(--color-paper);
  border-radius: var(--radius-md);
  font-size: var(--fs-small);
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-base) var(--ease-out);
  z-index: 1000;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }