/* ═══════════════════════════════════════════════════════════
   PORTFOLIO AKADEMIK — Navigation & Footer
   nav.css: navbar · mobile nav · footer · breadcrumb
   ═══════════════════════════════════════════════════════════ */

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  background: rgba(242,235,224,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }
.navbar.dark {
  background: rgba(11,18,32,.92);
  border-color: rgba(184,150,62,.15);
}

.navbar-brand {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 0;
}
.navbar-links a {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 6px 14px;
  position: relative;
  transition: color var(--t);
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 14px; right: 14px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform .25s;
}
.navbar-links a:hover,
.navbar-links a.active { color: var(--text); }
.navbar-links a:hover::after,
.navbar-links a.active::after { transform: scaleX(1); }
.navbar.dark .navbar-links a { color: rgba(242,235,224,.45); }
.navbar.dark .navbar-links a:hover { color: var(--cream); }

.navbar-right {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-shrink: 0;
}

/* ── Mobile nav ───────────────────────────────────────────── */
.navbar-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.navbar-burger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--navy);
  transition: all .3s;
}
.navbar.dark .navbar-burger span { background: var(--cream); }

.mobile-menu {
  position: fixed;
  top: 60px; left: 0; right: 0;
  z-index: calc(var(--z-nav) - 1);
  background: var(--cream);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: none;
  flex-direction: column;
  gap: 0;
  box-shadow: var(--shadow-md);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 12px 0;
  border-bottom: 1px solid rgba(26,32,53,.06);
  transition: color var(--t);
}
.mobile-menu a:hover { color: var(--gold); }

/* ── Page header (sub-pages) ──────────────────────────────── */
.page-header {
  padding: 100px 48px 60px;
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 300px; height: 300px;
  border: 1px solid rgba(184,150,62,.08);
  border-radius: 50%;
}
.page-header::after {
  content: '';
  position: absolute;
  bottom: -60px; left: 10%;
  width: 200px; height: 200px;
  border: 1px solid rgba(184,150,62,.05);
  border-radius: 50%;
}

.page-header-inner { position: relative; z-index: 1; max-width: 680px; }

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242,235,224,.3);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--gold); transition: opacity var(--t); }
.breadcrumb a:hover { opacity: .7; }
.breadcrumb span { color: rgba(242,235,224,.3); }

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  background: #070c15;
  padding: 48px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: start;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(184,150,62,.08);
}
.footer-brand {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 300;
  font-style: italic;
  color: rgba(242,235,224,.4);
  margin-bottom: 10px;
}
.footer-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(242,235,224,.2);
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
}
.footer-links a {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242,235,224,.25);
  transition: color var(--t);
}
.footer-links a:hover { color: var(--gold); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: rgba(242,235,224,.15);
}

.footer-admin-btn {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: none;
  border: 1px solid rgba(242, 235, 224, 0.08);
  color: rgba(242, 235, 224, 0.2);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.3s;
  border-radius: 6px;
}
.footer-admin-btn:hover { border-color: var(--gold); color: var(--gold); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .navbar { padding: 0 24px; }
  .navbar-links { display: none; }
  .navbar-burger { display: flex; }
  .page-header { padding: 90px 24px 48px; }
  .footer { padding: 36px 24px; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { align-items: flex-start; }
}