/* ============================================================
   navbar.css – header, hamburger menu and footer.
   Desktop: links in one row.
   Phone/tablet (<= 820px): links collapse behind a hamburger button.
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.3rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  color: var(--text);
  font-weight: 500;
}
.nav-link:hover { background: var(--bg); text-decoration: none; }
.nav-link.active { color: var(--primary); background: #e6f2f6; }

.nav-auth {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-user { font-weight: 600; color: var(--text); max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.btn-small { padding: 0.45rem 0.9rem; font-size: 0.9rem; }

/* Hamburger button (hidden on desktop) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #12303a;
  color: #cbd5dc;
  margin-top: 4rem;
  padding: 2rem 0 1rem;
}
.site-footer .logo { color: #fff; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.footer-text { margin-top: 0.4rem; font-size: 0.9rem; }
.footer-links { display: flex; gap: 1.2rem; flex-wrap: wrap; align-items: flex-start; }
.footer-links a { color: #cbd5dc; font-size: 0.95rem; }
.footer-note {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.82rem;
  color: #9fb0ba;
}

/* ---------- Small screens ---------- */
@media (max-width: 820px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    display: none;                 /* hidden until hamburger is tapped */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--surface);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.08);
  }
  .nav-menu.open { display: flex; }

  .nav-links { flex-direction: column; }
  .nav-link { padding: 0.8rem; }

  .nav-auth {
    flex-wrap: wrap;
    padding-top: 0.8rem;
    border-top: 1px solid var(--border);
  }
}