/* navbar.css — estructura compartida del nav + nav-btn.
 *
 * Pattern comú entre Denunciem, Ciutadata i Transitem:
 *  <nav>
 *    <div class="brand">…</div>          (per-projecte, no compartit)
 *    <div class="nav-btns">
 *      <button class="nav-btn">…</button>
 *      <button class="nav-btn icon">…</button>  (icon-only, no label visible)
 *    </div>
 *  </nav>
 *
 * Variables esperades (de tokens.css):
 *   --nav-h, --bg, --border, --ink
 *
 * NO inclou:
 *  - .brand (font/style varia per projecte: Transitem té Playfair em italic)
 *  - botons específics per ID (#btn-ajudam gradient, etc.)
 *  - .chip-revisio (només Transitem/Denunciem)
 */

nav {
  position: sticky; top: 0; z-index: 5000;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.nav-btns {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.nav-btn {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.48);
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 100px;
  padding: 5px 14px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-btn:hover {
  color: var(--ink);
  border-color: rgba(0, 0, 0, 0.4);
}

.nav-btn.icon {
  padding: 5px 10px;
  font-size: 0.95rem;
  letter-spacing: 0;
}

.nav-btn .nav-icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.nav-btn.icon .nav-label {
  display: none;
}

/* ── Mòbil ─────────────────────────────────────────── */
@media (max-width: 560px) {
  .nav-btns {
    gap: 5px;
  }
  .nav-btn {
    padding: 6px 10px;
    letter-spacing: 0.05em;
    font-size: 0.68rem;
  }
  .nav-btn.icon {
    padding: 6px 8px;
  }
}

/* ── Dark mode ─────────────────────────────────────── */
html.dark nav {
  border-bottom-color: rgba(255, 255, 255, 0.07);
}

html.dark .nav-btn {
  color: rgba(255, 255, 255, 0.48);
  border-color: rgba(255, 255, 255, 0.14);
}

html.dark .nav-btn:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.04);
}