/* -- Navbar -- */
.navbar {
  position: sticky; top: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 56px;
  background: var(--surface);
  border-bottom: 2px solid var(--accent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  direction: rtl;
}
.navbar .nav-logo {
  font-size: 1.1rem; font-weight: 900; color: var(--accent);
  text-decoration: none; white-space: nowrap;
  display: flex; align-items: center; gap: 6px;
}
.navbar .nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none; margin: 0; padding: 0;
}
.navbar .nav-link {
  font-size: 0.78rem; font-weight: 600; color: var(--text-dim);
  text-decoration: none; padding: 6px 14px; border-radius: 8px;
  transition: color 0.2s, background 0.2s; white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.navbar .nav-link:hover { color: var(--accent); background: var(--accent-dim); }
.navbar .nav-link.active { color: var(--accent); border-bottom-color: var(--accent); }
.navbar .nav-actions {
  display: flex; align-items: center; gap: 8px;
}
.navbar .nav-theme-btn {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  color: var(--text-dim); cursor: pointer; padding: 6px 10px; font-size: 0.85rem;
  transition: color 0.2s, border-color 0.2s; line-height: 1;
}
.navbar .nav-theme-btn:hover { color: var(--accent); border-color: var(--accent); }
.navbar .nav-search-btn {
  background: var(--surface2); border: 1px solid var(--border); border-radius: 8px;
  color: var(--text-dim); cursor: pointer; padding: 6px 12px; font-size: 0.72rem;
  font-family: inherit; transition: color 0.2s, border-color 0.2s;
  display: inline-flex; align-items: center; gap: 6px;
}
.navbar .nav-search-btn:hover { border-color: var(--accent); color: var(--accent); }
.navbar .nav-search-btn kbd {
  font-size: 0.6rem; padding: 1px 6px; border-radius: 4px;
  background: var(--surface3); border: 1px solid var(--border);
  font-family: monospace; direction: ltr;
}
.navbar .nav-search-btn .nav-search-icon {
  font-size: 0.85rem; line-height: 1; display: none;
}
.navbar .nav-search-btn .nav-search-label { display: inline; }

/* -- Hamburger -- */
.navbar .nav-hamburger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 8px; flex-direction: column; gap: 4px;
  position: relative; z-index: 202;
}
.navbar .nav-hamburger span {
  display: block; width: 20px; height: 2px;
  background: var(--accent); border-radius: 1px;
  transition: all 0.3s;
}
.navbar .nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.navbar .nav-hamburger.open span:nth-child(2) { opacity: 0; }
.navbar .nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* -- Mobile overlay -- */
.nav-mobile-overlay {
  display: none; position: fixed; inset: 0; top: 56px;
  background: rgba(8,12,18,0.95); z-index: 201;
  padding: 20px; flex-direction: column; gap: 6px;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.nav-mobile-overlay.open { display: flex; }
.nav-mobile-overlay .nav-link {
  font-size: 0.95rem; font-weight: 700; color: var(--text-dim);
  text-decoration: none; padding: 14px 16px; border-radius: 10px;
  transition: color 0.2s, background 0.2s; display: block; text-align: right;
}
.nav-mobile-overlay .nav-link:hover,
.nav-mobile-overlay .nav-link.active {
  color: var(--accent); background: var(--accent-dim);
}
.nav-mobile-overlay .nav-mobile-footer {
  margin-top: auto; padding: 16px; text-align: center;
  font-size: 0.6rem; color: var(--text-muted);
}
.nav-mobile-overlay .nav-mobile-footer a { color: var(--accent); text-decoration: none; }

/* -- Focus visible -- */
.navbar .nav-link:focus-visible,
.navbar .nav-theme-btn:focus-visible,
.navbar .nav-search-btn:focus-visible,
.navbar .nav-hamburger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* -- Mobile -- */
@media (max-width: 600px) {
  .navbar { height: 48px; padding: 0 12px; }
  .navbar .nav-logo { font-size: 0.9rem; }
  .navbar .nav-links { display: none; }
  .navbar .nav-search-btn {
    padding: 6px 8px; gap: 0; min-width: 34px; justify-content: center;
  }
  .navbar .nav-search-btn .nav-search-icon { display: inline; font-size: 0.95rem; }
  .navbar .nav-search-btn .nav-search-label { display: none; }
  .navbar .nav-search-btn kbd { display: none; }
  .navbar .nav-hamburger { display: flex; }
  .nav-mobile-overlay { top: 48px; }
}

/* -- Light theme -- */
body.light .nav-mobile-overlay {
  background: rgba(245,245,240,0.97);
}