/* =========================================================
   Responsive — Mobile First breakpoints
   Tablet → Laptop → Desktop → Large Desktop
   ========================================================= */

/* ---------- Tablet (≥ 48rem / 768px) ---------- */
@media (min-width: 48rem) {
  :root {
    --section-pad: 4.5rem 0;
    --header-height: 5rem;
  }

  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }

  .container {
    padding-inline: 1.5rem;
  }

  .row {
    margin-inline: -0.75rem;
  }

  .row > [class*="col-"] {
    padding-inline: 0.75rem;
  }

  .topbar {
    display: block;
  }

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

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

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

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

  .doctor-intro {
    margin-top: -5rem;
    padding-bottom: 4.5rem;
  }

  .doctor-intro-card {
    grid-template-columns: auto 1fr;
    text-align: left;
    padding: 1.75rem 2rem;
  }

  .doctor-intro-photo {
    margin-inline: 0;
    width: 8.5rem;
    height: 8.5rem;
  }

  .doctor-intro-content {
    text-align: left;
  }

  .doctor-intro-content .btn {
    margin-top: 0.25rem;
  }

  .hero-content {
    padding: 5rem 0 7rem;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

  .hero .owl-nav {
    bottom: 7rem;
  }

  .cta-bar-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .stats-wrap {
    grid-template-columns: 1fr 1fr;
  }

  .testimonials-panel,
  .stats-panel {
    padding: 3.5rem 2rem;
  }

  .map-section iframe {
    height: 22rem;
  }

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

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

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

  .footer-bottom-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .profile-layout {
    grid-template-columns: 16rem 1fr;
    align-items: start;
  }

  .profile-photo {
    margin-inline: 0;
    max-width: none;
  }

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

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

/* ---------- Laptop (≥ 64rem / 1024px) ---------- */
@media (min-width: 64rem) {
  :root {
    --section-pad: 5.5rem 0;
  }

  .nav-toggle {
    display: none;
  }

  .nav-overlay {
    display: none !important;
  }

  .main-nav {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    transform: none;
    box-shadow: none;
    overflow: visible;
    background: transparent;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 0.25rem;
  }

  .nav-list a {
    padding: 0.5rem 0.875rem;
    border-bottom: 0;
    font-size: 0.9375rem;
    position: relative;
  }

  .nav-list a::after {
    content: "";
    position: absolute;
    left: 0.875rem;
    right: 0.875rem;
    bottom: 0.25rem;
    height: 0.125rem;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform var(--transition);
  }

  .nav-list a:hover::after,
  .nav-list a.is-active::after {
    transform: scaleX(1);
  }

  .header-cta {
    display: inline-flex;
    flex-shrink: 0;
  }

  .header-inner {
    gap: 1.5rem;
  }

  .logo-name {
    font-size: 1.25rem;
  }

  .hero-content {
    max-width: 34rem;
    margin-right: 2rem;
  }

  .hero-content h1 {
    font-size: 2.75rem;
  }

  .doctor-intro {
    margin-top: -5.5rem;
    padding-bottom: 5rem;
  }

  .services-layout {
    grid-template-columns: 1fr 2fr;
    align-items: stretch;
  }

  .services-feature {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 100%;
  }

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

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

  .about-layout {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 3rem;
    align-items: center;
  }

  .about-media {
    margin-bottom: 0;
    max-height: none;
  }

  .appointment-layout {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

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

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

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  }

  .watermark {
    font-size: 6rem;
  }

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

  .page-banner {
    padding: 4rem 0 3.5rem;
  }
}

/* ---------- Desktop (≥ 75rem / 1200px) ---------- */
@media (min-width: 75rem) {
  .container {
    padding-inline: 1rem;
  }

  .hero-content {
    max-width: 36rem;
    margin-right: 4rem;
  }

  .hero-content h1 {
    font-size: 3rem;
  }

  .doctor-intro {
    margin-top: -6rem;
    padding-bottom: 5.5rem;
  }

  .doctor-intro-card {
    padding: 2rem 2.5rem;
  }

  .testimonials-panel,
  .stats-panel {
    padding: 4.5rem 3rem;
  }

  .stat-item .stat-number {
    font-size: 2.5rem;
  }

  .profile-layout {
    grid-template-columns: 20rem 1fr;
    gap: 3rem;
  }
}

/* ---------- Large Desktop (≥ 87.5rem / 1400px) ---------- */
@media (min-width: 87.5rem) {
  :root {
    --section-pad: 6rem 0;
  }

  .hero .owl-nav {
    left: calc((100vw - var(--container)) / 2 + 1rem);
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}