/* ==========================================================================
   CarePlus Phòng Khám Đa Khoa — Responsive breakpoints
   ========================================================================== */

/* ---------- Tablet (<= 1024px) ---------- */
@media (max-width: 1024px) {
  section {
    padding: 64px 0;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-media {
    order: -1;
    max-width: 420px;
    margin: 0 auto;
  }

  .trust-bar {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 20px;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }

  .about-checklist {
    align-items: center;
  }

  .about-checklist li {
    justify-content: center;
  }

  .about-stats {
    flex-direction: row;
    justify-content: center;
    gap: 36px;
    text-align: center;
  }

  .doctor-card {
    flex: 0 0 calc(50% - 12px);
  }

  .carousel-arrow.prev {
    left: 4px;
  }

  .carousel-arrow.next {
    right: 4px;
  }

  .booking-testimonial-grid {
    grid-template-columns: 1fr;
  }

  .booking-panel {
    grid-template-columns: 1fr;
  }

  .features-strip .container {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 36px 24px;
  }

  .footer-grid > div:first-child {
    grid-column: 1 / -1;
  }

  .footer-grid > .footer-map-col {
    grid-column: 1 / -1;
  }

  .footer-map {
    max-width: 360px;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .grid-4,
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid,
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .service-feature,
  .service-feature.is-reverse .service-feature-media {
    grid-template-columns: 1fr;
    order: -1;
  }

  .service-feature {
    gap: 28px;
  }

  .main-nav {
    gap: 18px;
  }
}

/* ---------- Small tablet / large mobile (<= 860px) ---------- */
@media (max-width: 860px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--color-bg);
    padding: 20px 24px 40px;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    z-index: 400;
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .main-nav a {
    width: 100%;
    padding: 15px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
  }

  .header-actions .btn-primary,
  .header-actions .header-phone {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .doctor-card {
    flex: 0 0 100%;
  }

  .booking-panel {
    padding: 26px;
  }
}

/* ---------- Mobile (<= 640px) ---------- */
@media (max-width: 640px) {
  section {
    padding: 52px 0;
  }

  .container {
    padding: 0 18px;
  }

  h2 {
    font-size: 1.45rem;
  }

  .top-bar-info span:nth-child(1) {
    display: none;
  }

  .service-grid,
  .grid-4,
  .grid-3,
  .grid-2,
  .process-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  .features-strip .container {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .calendar-slots {
    grid-template-columns: repeat(3, 1fr);
  }

  .site-header .container {
    gap: 12px;
  }

  .brand-name {
    font-size: 1.1rem;
  }

  .back-to-top {
    right: 14px;
    bottom: 18px;
  }
}