/* ============================================
   DR. NIHAL AFFAN - SHARED STYLES & ANIMATIONS
   ============================================ */

/* REVEAL CLASSES - set by JS on scroll */
.reveal {
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.reveal.reveal-up    { transform: translate3d(0, 30px, 0); }
.reveal.reveal-left  { transform: translate3d(-30px, 0, 0); }
.reveal.reveal-right { transform: translate3d(30px, 0, 0); }
.reveal.reveal-scale { transform: scale3d(0.95, 0.95, 1); }
.reveal.visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

/* STAGGER DELAYS */
.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }

/* ============================================
   ACTIVE NAV LINK
   ============================================ */
.nav-links a.nav-active {
  background: linear-gradient(135deg, #40070D, #4D0C0C);
  color: #FDF7F8 !important;
  padding: 10px 16px;
  border-radius: 5px;
  box-shadow: 0 10px 24px rgba(64, 7, 13, 0.34);
}
.nav-links a.btn-location:not(.nav-active) {
  background: none;
  box-shadow: none;
  padding: 0;
}
.nav-links a.btn-location.nav-active {
  background: linear-gradient(135deg, #40070D, #4D0C0C);
  padding: 10px 16px;
  border-radius: 5px;
  box-shadow: 0 10px 24px rgba(64, 7, 13, 0.34);
}

/* ============================================
   PAGE TRANSITION
   ============================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
body {
  animation: fadeIn 0.25s ease forwards;
}

/* PERFORMANCE: offscreen cards */
.treatment-card,
.gallery-item,
.clinic-card {
  contain: layout style paint;
}

/* ============================================
   IMAGE HOVER ZOOM (lightweight - no will-change)
   ============================================ */
.gallery-item img,
.clinic-image img {
  transition: transform 0.15s ease-out;
}
.gallery-item:hover img,
.clinic-card:hover .clinic-image img {
  transform: scale(1.05);
}

/* ============================================
   CARD HOVER LIFT (simple, no will-change)
   ============================================ */
.treatment-card {
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
}
.treatment-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.07);
}

.clinic-card {
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
}
.clinic-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 25px rgba(0,0,0,0.06);
}

/* ============================================
   FLOATING BOOK BTN
   ============================================ */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 8px 25px rgba(64, 7, 13, 0.45); }
  50%       { box-shadow: 0 12px 35px rgba(64, 7, 13, 0.7); }
}
.book-btn {
  animation: pulse-glow 3s ease-in-out infinite;
}
.book-btn:hover {
  animation: none;
}

/* ============================================
   STAT HOVER GRADIENT TEXT
   ============================================ */
.stat-card:hover h3,
.reach-stat-item:hover h3 {
  background: linear-gradient(135deg, #4D0C0C, #40070D);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   SOCIAL LINK HOVER
   ============================================ */
.social-item {
  transition: transform 0.25s ease;
}
.social-item:hover {
  transform: translateY(-3px);
}

/* ============================================
   BUTTON SHINE ON HOVER
   ============================================ */
.submit-btn, .book-this-btn {
  position: relative;
  overflow: hidden;
}
.submit-btn::after, .book-this-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: skewX(-20deg);
  transition: left 0.5s ease;
}
.submit-btn:hover::after, .book-this-btn:hover::after {
  left: 150%;
}

/* ============================================
   BRAND / FOOTER / NAV HOVER
   ============================================ */
.brand-name {
  transition: opacity 0.3s ease;
}
.brand-name:hover {
  opacity: 0.7;
}

.footer-col ul li {
  transition: transform 0.2s ease;
  cursor: default;
}
.footer-col ul li:hover {
  transform: translateX(4px);
}

.nav-links a:not(.nav-active):not(.btn-location) {
  position: relative;
}
.nav-links a:not(.nav-active):not(.btn-location)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: #40070D;
  transition: width 0.3s ease;
}
.nav-links a:not(.nav-active):not(.btn-location):hover::after {
  width: 100%;
}

/* ============================================
   GALLERY ITEM OVERLAY
   ============================================ */
.gallery-item {
  position: relative;
}
.gallery-item::after {
  content: 'VIEW';
  position: absolute;
  inset: 0;
  background: rgba(60, 30, 10, 0);
  color: rgba(255,255,255,0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  transition: background 0.3s ease, color 0.3s ease;
}
.gallery-item:hover::after {
  background: rgba(60, 30, 10, 0.22);
  color: rgba(255,255,255,0.9);
}

/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */
#scrollTopBtn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #40070D, #4D0C0C);
  border: none;
  border-radius: 50%;
  color: #FDF7F8;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  z-index: 999;
  font-size: 16px;
}
#scrollTopBtn.visible {
  opacity: 1;
  visibility: visible;
}
#scrollTopBtn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.16);
}

/* ============================================
   IMAGE FADE-IN ON LOAD (CSS only - no shimmer)
   ============================================ */
img.img-loading {
  opacity: 0;
  transition: opacity 0.1s ease-out;
}
img.img-loaded {
  opacity: 1;
}

.social-link,
.social-link:visited,
.social-link:hover,
.social-link:active,
.social-link:focus {
    color: inherit;
    text-decoration: none;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ============================================
   GLOBAL NAV RESPONSIVENESS
   ============================================ */
.global-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 92vw;
  max-width: 1580px;
  margin-left: calc(50% - 46vw);
  margin-right: calc(50% - 46vw);
  padding: 38px clamp(18px, 1.6vw, 30px) 30px;
  gap: 40px;
}
.global-nav .brand-name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(24px, 1.45vw, 30px);
  font-weight: 600;
  color: var(--text-dark) !important;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}
.global-nav .nav-links {
  display: flex;
  gap: clamp(20px, 1.7vw, 34px);
  align-items: center;
  justify-content: flex-end;
}
.global-nav .nav-links a {
  text-decoration: none;
  font-size: clamp(11px, 0.68vw, 13px);
  font-weight: 800;
  color: var(--text-dark) !important;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  line-height: 1;
  white-space: nowrap;
  padding: 10px 0;
}
.global-nav .nav-links a.nav-active,
.global-nav .nav-links a.btn-location.nav-active {
  padding: 10px 16px;
  border-radius: 5px;
}

.mobile-nav-toggle {
  display: none;
}

@media (max-width: 768px) {
  body {
    padding-bottom: calc(86px + env(safe-area-inset-bottom)) !important;
  }

  .site-nav {
    position: relative !important;
    z-index: 300 !important;
  }

  .site-nav,
  .global-nav.site-nav,
  .brand-nav.site-nav {
    align-items: center !important;
    gap: 14px !important;
    min-height: 68px !important;
    padding: 16px 18px !important;
    width: 100vw !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
  }

  .brand-nav.site-nav {
    position: fixed !important;
    left: 0 !important;
    transform: none !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .global-nav.site-nav {
    left: auto !important;
    transform: none !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .site-nav .brand-name,
  .global-nav.site-nav .brand-name,
  .brand-nav.site-nav .brand-name {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    font-size: clamp(22px, 6.4vw, 31px) !important;
    line-height: 1.05 !important;
    white-space: nowrap !important;
  }

  .mobile-nav-toggle {
    display: none !important;
  }

  .site-nav .nav-links,
  .global-nav.site-nav .nav-links,
  .brand-nav.site-nav .nav-links {
    position: fixed !important;
    top: auto !important;
    left: 12px !important;
    right: 12px !important;
    bottom: calc(10px + env(safe-area-inset-bottom)) !important;
    z-index: 900 !important;
    display: grid !important;
    grid-template-columns: repeat(6, minmax(0, 1fr)) !important;
    gap: 4px !important;
    margin: 0 !important;
    padding: 8px !important;
    border: 1px solid rgba(253, 247, 248, 0.16) !important;
    border-radius: 12px !important;
    background: rgba(28, 1, 12, 0.94) !important;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.06) !important;
    backdrop-filter: blur(18px) !important;
    -webkit-backdrop-filter: blur(18px) !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
    pointer-events: auto !important;
  }

  .site-nav .nav-links a,
  .global-nav.site-nav .nav-links a,
  .brand-nav.site-nav .nav-links a,
  .site-nav .nav-links a.btn-location {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative !important;
    min-width: 0 !important;
    min-height: 50px !important;
    padding: 0 3px !important;
    border: 1px solid transparent !important;
    border-radius: 9px !important;
    background: transparent !important;
    box-shadow: none !important;
    color: #FDF7F8 !important;
    font-size: 0 !important;
    font-weight: 800 !important;
    letter-spacing: 0 !important;
    line-height: 1 !important;
    text-align: center !important;
    text-decoration: none !important;
    white-space: nowrap !important;
  }

  .site-nav .nav-links a.nav-active,
  .global-nav.site-nav .nav-links a.nav-active,
  .brand-nav.site-nav .nav-links a.nav-active,
  .site-nav .nav-links a.btn-location.nav-active {
    background: linear-gradient(135deg, #6E171D, #40070D) !important;
    border-color: rgba(253, 247, 248, 0.22) !important;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18) !important;
  }

  .site-nav .nav-links a::before,
  .global-nav.site-nav .nav-links a::before,
  .brand-nav.site-nav .nav-links a::before {
    content: '' !important;
    position: absolute !important;
    top: 9px !important;
    left: 50% !important;
    width: 5px !important;
    height: 5px !important;
    border-radius: 999px !important;
    background: rgba(253, 247, 248, 0.34) !important;
    transform: translateX(-50%) !important;
  }

  .site-nav .nav-links a::after,
  .global-nav.site-nav .nav-links a::after,
  .brand-nav.site-nav .nav-links a::after {
    content: attr(data-mobile-label) !important;
    display: block !important;
    position: static !important;
    width: auto !important;
    height: auto !important;
    margin-top: 12px !important;
    background: none !important;
    color: inherit !important;
    font-size: clamp(7.4px, 2vw, 9px) !important;
    font-weight: 800 !important;
    line-height: 1 !important;
    transform: none !important;
  }

  .site-nav .nav-links a.nav-active::before,
  .global-nav.site-nav .nav-links a.nav-active::before,
  .brand-nav.site-nav .nav-links a.nav-active::before {
    background: #FDF7F8 !important;
    box-shadow: 0 0 12px rgba(253, 247, 248, 0.45) !important;
  }
}

@media (max-width: 480px) {
  .site-nav,
  .global-nav.site-nav,
  .brand-nav.site-nav {
    min-height: 64px !important;
    padding: 14px 14px !important;
  }

  .site-nav .brand-name,
  .global-nav.site-nav .brand-name,
  .brand-nav.site-nav .brand-name {
    font-size: clamp(21px, 6.8vw, 27px) !important;
  }

  .mobile-nav-toggle {
    display: none !important;
  }

  .site-nav .nav-links,
  .global-nav.site-nav .nav-links,
  .brand-nav.site-nav .nav-links {
    left: 10px !important;
    right: 10px !important;
    padding: 7px !important;
    gap: 3px !important;
  }

  .site-nav .nav-links a,
  .global-nav.site-nav .nav-links a,
  .brand-nav.site-nav .nav-links a,
  .site-nav .nav-links a.btn-location {
    min-height: 48px !important;
    border-radius: 8px !important;
  }
}

/* ============================================
   MOBILE NAV DRAWER
   ============================================ */
@media (max-width: 768px) {
  body {
    padding-bottom: 0 !important;
  }

  .site-nav,
  .global-nav.site-nav,
  .brand-nav.site-nav {
    position: relative !important;
    z-index: 700 !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 0 !important;
    min-height: 68px !important;
    padding: 18px 20px !important;
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    box-sizing: border-box !important;
    overflow: visible !important;
  }

  .brand-nav.site-nav {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    transform: none !important;
    width: 100% !important;
    max-width: none !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding: 18px 20px !important;
    gap: 0 !important;
  }

  .mobile-nav-toggle {
    display: inline-flex !important;
    flex: 0 0 auto !important;
    width: 46px !important;
    height: 46px !important;
    padding: 0 !important;
    border: 1px solid rgba(253, 247, 248, 0.2) !important;
    border-radius: 8px !important;
    background: rgba(253, 247, 248, 0.08) !important;
    color: #FDF7F8 !important;
    align-items: center !important;
    justify-content: center !important;
    flex-direction: column !important;
    gap: 5px !important;
    cursor: pointer !important;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22) !important;
    -webkit-tap-highlight-color: transparent !important;
  }

  .mobile-nav-toggle span {
    width: 20px !important;
    height: 2px !important;
    border-radius: 999px !important;
    background: currentColor !important;
    transition: transform 0.25s ease, opacity 0.2s ease !important;
  }

  .site-nav.nav-open .mobile-nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg) !important;
  }

  .site-nav.nav-open .mobile-nav-toggle span:nth-child(2) {
    opacity: 0 !important;
  }

  .site-nav.nav-open .mobile-nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg) !important;
  }

  .site-nav .nav-links,
  .global-nav.site-nav .nav-links,
  .brand-nav.site-nav .nav-links {
    position: absolute !important;
    top: calc(100% + 8px) !important;
    left: 14px !important;
    right: 14px !important;
    bottom: auto !important;
    z-index: 900 !important;
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 9px !important;
    width: auto !important;
    margin: 0 !important;
    padding: 12px !important;
    border: 1px solid rgba(253, 247, 248, 0.16) !important;
    border-radius: 10px !important;
    background: rgba(28, 1, 12, 0.98) !important;
    box-shadow: 0 24px 58px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.06) !important;
    backdrop-filter: blur(18px) !important;
    -webkit-backdrop-filter: blur(18px) !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-8px) scale(0.98) !important;
    pointer-events: none !important;
    transition: opacity 0.22s ease, visibility 0.22s ease, transform 0.22s ease !important;
  }

  .site-nav.nav-open .nav-links,
  .global-nav.site-nav.nav-open .nav-links,
  .brand-nav.site-nav.nav-open .nav-links {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) scale(1) !important;
    pointer-events: auto !important;
  }

  .site-nav .nav-links a,
  .global-nav.site-nav .nav-links a,
  .brand-nav.site-nav .nav-links a,
  .site-nav .nav-links a.btn-location {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    min-height: 45px !important;
    padding: 12px 10px !important;
    border: 1px solid rgba(253, 247, 248, 0.1) !important;
    border-radius: 8px !important;
    background: rgba(253, 247, 248, 0.055) !important;
    box-shadow: none !important;
    color: #FDF7F8 !important;
    font-size: 10px !important;
    font-weight: 800 !important;
    letter-spacing: 0.7px !important;
    line-height: 1 !important;
    text-align: center !important;
    text-decoration: none !important;
    text-transform: uppercase !important;
    white-space: nowrap !important;
  }

  .site-nav .nav-links a::before,
  .global-nav.site-nav .nav-links a::before,
  .brand-nav.site-nav .nav-links a::before,
  .site-nav .nav-links a::after,
  .global-nav.site-nav .nav-links a::after,
  .brand-nav.site-nav .nav-links a::after {
    content: none !important;
    display: none !important;
  }

  .site-nav .nav-links a.nav-active,
  .global-nav.site-nav .nav-links a.nav-active,
  .brand-nav.site-nav .nav-links a.nav-active,
  .site-nav .nav-links a.btn-location.nav-active {
    background: linear-gradient(135deg, #6E171D, #40070D) !important;
    border-color: rgba(253, 247, 248, 0.22) !important;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18) !important;
  }
}

@media (max-width: 480px) {
  .site-nav,
  .global-nav.site-nav,
  .brand-nav.site-nav {
    min-height: 64px !important;
    padding: 15px 10px !important;
    gap: 12px !important;
    justify-content: space-between !important;
  }

  .site-nav .nav-links,
  .global-nav.site-nav .nav-links,
  .brand-nav.site-nav .nav-links {
    left: 10px !important;
    right: 10px !important;
    padding: 10px !important;
    gap: 8px !important;
  }
}

/* Exact mobile header spacing used on the Brand page, applied everywhere. */
@media (max-width: 768px) {
  .site-nav,
  .global-nav.site-nav,
  .brand-nav.site-nav {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 18px 20px !important;
    width: 100vw !important;
    max-width: none !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
    gap: 0 !important;
    box-sizing: border-box !important;
  }

  .brand-nav.site-nav {
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .site-nav .brand-name,
  .global-nav.site-nav .brand-name,
  .brand-nav.site-nav .brand-name {
    font-size: clamp(22px, 6.4vw, 31px) !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }
}

@media (max-width: 480px) {
  .site-nav,
  .global-nav.site-nav,
  .brand-nav.site-nav {
    padding: 15px 10px !important;
    gap: 12px !important;
    width: 100vw !important;
    max-width: none !important;
    margin-left: calc(50% - 50vw) !important;
    margin-right: calc(50% - 50vw) !important;
  }

  .brand-nav.site-nav {
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .site-nav .brand-name,
  .global-nav.site-nav .brand-name,
  .brand-nav.site-nav .brand-name {
    font-size: clamp(22px, 6.4vw, 31px) !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }
}