/* ==========================================================================
   MediCare Hospital - Responsive Stylesheet
   Breakpoints: 1200px, 992px, 768px, 576px, 375px, 320px
   Features: Sticky Mobile Bottom Nav, Accessible Navigation Drawer
   ========================================================================== */

/* --------------------------------------------------------------------------
   Sticky Mobile Bottom Navigation (Hidden on Desktop, Visible on Mobile/Tablet)
   -------------------------------------------------------------------------- */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-border);
  z-index: 999;
  box-shadow: 0 -4px 16px rgba(10, 37, 64, 0.08);
  padding: 0.45rem 0.5rem calc(0.45rem + env(safe-area-inset-bottom, 0px));
}

.mobile-bottom-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-around;
  max-width: 540px;
  margin: 0 auto;
}

.mobile-bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  color: #64748B;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  min-width: 58px;
  text-decoration: none;
}

.mobile-bottom-nav__item svg {
  width: 20px;
  height: 20px;
}

.mobile-bottom-nav__item:hover,
.mobile-bottom-nav__item.is-active {
  color: var(--color-primary-blue);
}

/* Prominent Emergency Button in Mobile Bottom Nav */
.mobile-bottom-nav__item--emergency {
  background-color: var(--color-emergency);
  color: #FFFFFF !important;
  border-radius: var(--radius-md);
  padding: 0.45rem 0.85rem;
  box-shadow: 0 2px 8px rgba(217, 56, 58, 0.35);
  transform: translateY(-4px);
}

.mobile-bottom-nav__item--emergency:hover {
  background-color: var(--color-emergency-hover);
}

.mobile-bottom-nav__item--emergency svg {
  color: #FFFFFF;
}

/* --------------------------------------------------------------------------
   Mobile Drawer Navigation Overlay
   -------------------------------------------------------------------------- */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(10, 29, 55, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav-drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer__content {
  position: absolute;
  top: 0;
  right: 0;
  width: 82%;
  max-width: 340px;
  height: 100%;
  background-color: #FFFFFF;
  box-shadow: var(--shadow-xl);
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
}

.mobile-nav-drawer.is-open .mobile-nav-drawer__content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.mobile-drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.mobile-drawer-link:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-primary-blue);
}

.mobile-drawer-link--emergency {
  color: var(--color-emergency);
  background-color: var(--color-emergency-light);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */

/* Large Tablets & Small Laptops (<= 1100px) */
@media (max-width: 1100px) {
  .departments-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

/* Tablets (<= 992px) */
@media (max-width: 992px) {
  .section {
    padding: 3.75rem 0;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero__content {
    text-align: left;
  }

  .hero__image {
    height: 380px;
  }

  .quick-actions-section {
    margin-top: 0;
    padding-top: 1.5rem;
  }

  .quick-actions-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-image {
    height: 360px;
  }

  .doctors-grid {
    grid-template-columns: 1fr;
    max-width: 540px;
  }

  .emergency-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .appointment-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .location-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  body {
    padding-bottom: 68px; /* Safe cushion for sticky mobile bottom navigation */
  }

  .mobile-bottom-nav {
    display: block;
  }

  .emergency-top-bar__right span {
    display: none;
  }

  /* Header adjustments */
  .nav-menu,
  .header-cta .btn {
    display: none;
  }

  .mobile-nav-toggle {
    display: flex;
  }

  .mobile-emergency-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 700;
    color: #FFFFFF;
    background-color: var(--color-emergency);
    border-radius: var(--radius-sm);
  }

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

  .why-choose-grid {
    grid-template-columns: 1fr;
  }

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

  .booking-form-wrapper {
    padding: 1.75rem 1.25rem;
  }

  .hero__floating-card {
    position: static;
    margin-top: 1rem;
    max-width: 100%;
  }

  .about-badge-card {
    position: static;
    margin-top: 1rem;
    width: 100%;
    text-align: center;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Small Phones (<= 480px) */
@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .hero {
    padding: 2.5rem 0 2rem;
  }

  .hero__title {
    font-size: 1.85rem;
  }

  .hero__lead {
    font-size: 1rem;
  }

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

  .hero__actions .btn {
    width: 100%;
  }

  .quick-actions-grid {
    grid-template-columns: 1fr;
  }

  .trust-indicators {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }

  .department-filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .department-search-box {
    width: 100%;
  }

  .dept-tab-btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }

  .doctor-card__actions {
    grid-template-columns: 1fr;
  }

  .emergency-section__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .emergency-section__actions .btn {
    width: 100%;
  }

  .appointment-info-box {
    padding: 1.75rem 1.25rem;
  }

  .location-card {
    padding: 1.75rem 1.25rem;
  }

  .modal-dialog {
    margin: 0.75rem;
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* Extra Compact Devices (<= 360px) */
@media (max-width: 360px) {
  .site-logo__title {
    font-size: 1.15rem;
  }

  .mobile-bottom-nav__item {
    font-size: 0.65rem;
    padding: 0.2rem 0.35rem;
    min-width: 50px;
  }

  .mobile-bottom-nav__item svg {
    width: 18px;
    height: 18px;
  }
}