/* ─── Navbar Component ─── */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
}

.nav__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem 0;
  gap: 1.5rem;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  cursor: pointer;
  flex-shrink: 0;
  user-select: none;
}

.nav__logo span {
  color: var(--accent);
}

.nav__search {
  display: flex;
  align-items: center;
  background: var(--paper-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0 0.875rem;
  gap: 0.5rem;
  flex: 1;
  max-width: 380px;
  transition: border-color var(--transition);
}

.nav__search:focus-within {
  border-color: var(--ink);
}

.nav__search input {
  background: transparent;
  border: none;
  outline: none;
  padding: 0.5rem 0;
  width: 100%;
  font-size: 0.875rem;
  color: var(--ink);
}

.nav__search input::placeholder {
  color: var(--ink-faint);
}

.nav__search-icon {
  color: var(--ink-faint);
  font-size: 1rem;
  flex-shrink: 0;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.nav__submit-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.5rem 1.125rem;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
}

.nav__submit-btn:hover { background: var(--accent-dark); }

.nav__admin-btn {
  background: transparent;
  color: var(--ink-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition);
}

.nav__admin-btn:hover { border-color: var(--ink); color: var(--ink); }

/* Main nav links */
.nav__links {
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.nav__links::-webkit-scrollbar { display: none; }

.nav__link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-muted);
  padding: 0.625rem 1rem;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.nav__link:hover { color: var(--ink); }
.nav__link--active { color: var(--ink); border-bottom-color: var(--accent); }

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink);
  font-size: 1.25rem;
  padding: 0.25rem;
}

@media (max-width: 640px) {
  .nav__search { display: none; }
  .nav__hamburger { display: block; }
  .nav__link { padding: 0.5rem 0.75rem; font-size: 0.75rem; }
}

/* ── Nav right group (search + admin icon) ── */
.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.nav-admin-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  color: var(--ink-faint);
  background: transparent;
  border: 1px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
  flex-shrink: 0;
  font-size: 0.9rem;
}

.nav-admin-btn:hover {
  color: var(--ink);
  background: var(--surface2);
  border-color: var(--border);
}

@media (max-width: 640px) {
  .nav-right { gap: 0.375rem; }
  .nav-admin-btn { width: 30px; height: 30px; font-size: 0.8125rem; }
}