/* ============================================================
   DR. LINA DENTAL CLINIC — style.css
   Design tokens → base → layout → components → sections → responsive
   ============================================================ */

/* ── TOKENS ─────────────────────────────────────────────── */
:root {
  --blue-deep:    #0A3D6B;
  --blue-mid:     #1565C0;
  --blue-bright:  #1E90FF;
  --blue-soft:    #E8F4FD;
  --blue-softer:  #F0F8FF;
  --gold:         #C9A84C;
  --gold-light:   #FFF8E1;
  --green-wa:     #25D366;
  --white:        #FFFFFF;
  --text-dark:    #0D1B2A;
  --text-mid:     #3D5166;
  --text-light:   #6B82A0;
  --border:       #D9E8F5;
  --shadow-card:  0 2px 24px rgba(10,61,107,.07);
  --shadow-hover: 0 8px 40px rgba(10,61,107,.14);
  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --transition:   .22s cubic-bezier(.4,0,.2,1);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', -apple-system, sans-serif;
  --nav-h:        72px;
}

/* ── RESET ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
ul { list-style: none; }
details { list-style: none; }
details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }
input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
  color: var(--text-dark);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  width: 100%;
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--blue-bright);
  box-shadow: 0 0 0 3px rgba(30,144,255,.12);
}
textarea { resize: vertical; min-height: 90px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ── CONTAINER ───────────────────────────────────────────── */
.container {
  width: min(1200px, 100% - 2rem);
  margin-inline: auto;
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.6rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .02em;
  transition: all var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--blue-deep);
  color: var(--white);
}
.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10,61,107,.25);
}
.btn-whatsapp {
  background: var(--green-wa);
  color: var(--white);
}
.btn-whatsapp:hover, .btn-whatsapp:focus-visible {
  background: #1ebe57;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,211,102,.3);
}
.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }
.btn-sm { padding: .5rem 1.2rem; font-size: .875rem; }
.btn-full { width: 100%; justify-content: center; }
.btn:focus-visible { outline: 3px solid var(--blue-bright); outline-offset: 3px; }

/* ── SECTION ANATOMY ─────────────────────────────────────── */
.section { padding: 96px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: .75rem;
}
.section-eyebrow.light { color: rgba(255,255,255,.7); }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--blue-deep);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section-title.light { color: var(--white); }
.section-sub {
  color: var(--text-mid);
  font-size: 1.05rem;
  max-width: 560px;
  margin-inline: auto;
}

/* ── LOGO ────────────────────────────────────────────────── */
.logo { display: flex; align-items: center; gap: .75rem; }
.logo-icon { flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-name { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; color: var(--blue-deep); }
.logo-tagline { font-size: .7rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--text-light); }

/* ── HEADER ──────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 4px 24px rgba(10,61,107,.06);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 100%;
}
.nav-desktop {
  display: flex;
  gap: .25rem;
  margin-inline: auto;
}
.nav-link {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-mid);
  padding: .5rem .75rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active {
  color: var(--blue-deep);
  background: var(--blue-soft);
}
.nav-cta { margin-left: auto; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--blue-deep);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow-hover);
}
.mobile-menu.open { display: block; }
.mobile-menu nav { display: flex; flex-direction: column; gap: .25rem; }
.mobile-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-mid);
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.mobile-link:hover { background: var(--blue-soft); color: var(--blue-deep); }
.mobile-cta { margin-top: 1rem; width: 100%; justify-content: center; }

/* ── HERO ────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  padding-top: var(--nav-h);
  background: linear-gradient(135deg, var(--blue-softer) 0%, #EEF6FF 40%, var(--white) 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}
.hero-bg-shape {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(30,144,255,.07) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-tooth-watermark {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  width: min(420px, 45vw);
  pointer-events: none;
  opacity: .5;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 5rem 0;
}
.hero-eyebrow {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue-bright);
  margin-bottom: 1.25rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--blue-deep);
  margin-bottom: 1.25rem;
}
.hero-headline em {
  font-style: italic;
  color: var(--blue-bright);
}
.hero-sub {
  font-size: 1.1rem;
  color: var(--text-mid);
  max-width: 480px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.trust-badges {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  width: fit-content;
}
.badge { text-align: center; }
.badge-number {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blue-deep);
  line-height: 1;
}
.badge-label {
  display: block;
  font-size: .72rem;
  color: var(--text-light);
  font-weight: 500;
  white-space: nowrap;
  margin-top: .25rem;
}
.badge-divider {
  width: 1px; height: 36px;
  background: var(--border);
  flex-shrink: 0;
}
.hero-img-frame { position: relative; }
.hero-img-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(145deg, #DBEAFE, #EFF6FF);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-light);
  font-size: .85rem;
  font-weight: 500;
  border: 2px dashed var(--border);
  position: relative;
  overflow: hidden;
}
.hero-img-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(10,61,107,.04));
}
.hero-card-float {
  position: absolute;
  bottom: 1.5rem;
  left: -1rem;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-hover);
  display: flex;
  align-items: center;
  gap: .75rem;
  min-width: 180px;
}
.float-icon { font-size: 1.4rem; color: var(--gold); }
.hero-card-float strong { display: block; font-size: .85rem; color: var(--blue-deep); }
.hero-card-float span { font-size: .75rem; color: var(--text-light); }

/* ── ABOUT ───────────────────────────────────────────────── */
.about { background: var(--white); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: center;
}
.about-img-wrap { position: relative; }
.about-img-placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  background: linear-gradient(145deg, #DBEAFE, #EFF6FF);
  border-radius: var(--radius-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-light);
  font-size: .85rem;
  font-weight: 500;
  border: 2px dashed var(--border);
}
.about-badge-exp {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  width: 100px; height: 100px;
  background: var(--blue-deep);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  box-shadow: 0 8px 32px rgba(10,61,107,.25);
}
.exp-num { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; line-height: 1; }
.exp-label { font-size: .6rem; line-height: 1.3; opacity: .85; }
.about-specialty {
  font-size: 1rem;
  font-weight: 600;
  color: var(--blue-bright);
  margin-bottom: 1.25rem;
}
.about-desc { color: var(--text-mid); margin-bottom: 1rem; line-height: 1.75; }
.about-certs { margin: 1.75rem 0; display: flex; flex-direction: column; gap: .75rem; }
.cert-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .9rem;
  color: var(--text-mid);
  font-weight: 500;
}
.cert-icon { font-size: 1.1rem; flex-shrink: 0; }

/* ── SERVICES ────────────────────────────────────────────── */
.services { background: var(--blue-softer); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  border: 1px solid transparent;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--blue-bright);
}
.service-icon { width: 56px; height: 56px; margin-bottom: 1.25rem; }
.service-icon svg { width: 100%; height: 100%; }
.service-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: .6rem;
}
.service-desc { font-size: .9rem; color: var(--text-mid); line-height: 1.65; }

/* ── GALLERY ─────────────────────────────────────────────── */
.results { background: var(--white); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}
.gallery-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.gallery-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.gallery-split { display: flex; height: 200px; }
.gallery-side { flex: 1; position: relative; }
.gallery-img-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(145deg, #CBD5E1, #94A3B8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 600;
  color: rgba(255,255,255,.6);
  text-transform: uppercase;
  letter-spacing: .1em;
}
.gallery-img-placeholder.after-placeholder {
  background: linear-gradient(145deg, #BFDBFE, #3B82F6);
}
.gallery-divider {
  width: 3px;
  background: var(--white);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.gallery-label {
  position: absolute;
  bottom: .5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .25rem .6rem;
  border-radius: 50px;
}
.gallery-label.before { background: rgba(0,0,0,.4); color: white; }
.gallery-label.after { background: var(--blue-bright); color: white; }
.gallery-treatment {
  padding: 1rem 1.25rem;
  text-align: center;
  font-weight: 600;
  font-size: .95rem;
  color: var(--blue-deep);
}

/* ── WHY US ──────────────────────────────────────────────── */
.whyus { background: var(--blue-softer); }
.whyus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.whyus-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.whyus-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.whyus-icon { width: 64px; height: 64px; margin: 0 auto 1.25rem; }
.whyus-icon svg { width: 100%; height: 100%; }
.whyus-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--blue-deep);
  margin-bottom: .6rem;
}
.whyus-card p { font-size: .9rem; color: var(--text-mid); line-height: 1.65; }

/* ── REVIEWS ─────────────────────────────────────────────── */
.reviews { background: var(--white); }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.review-card {
  background: var(--blue-softer);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.review-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.review-stars { color: #FBBF24; font-size: 1.2rem; letter-spacing: .1em; margin-bottom: 1rem; }
.review-text {
  font-size: .95rem;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}
.reviewer { display: flex; align-items: center; gap: .75rem; }
.reviewer-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--blue-deep);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .95rem;
  flex-shrink: 0;
}
.reviewer strong { display: block; font-size: .95rem; color: var(--blue-deep); }
.reviewer span { font-size: .8rem; color: var(--text-light); }

/* ── FAQ ─────────────────────────────────────────────────── */
.faq { background: var(--blue-softer); }
.faq-inner .section-header { margin-bottom: 48px; }
.faq-list {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.faq-item[open] { box-shadow: var(--shadow-card); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  font-size: .98rem;
  color: var(--blue-deep);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}
.faq-question:hover { background: var(--blue-softer); }
.faq-chevron { flex-shrink: 0; transition: transform var(--transition); }
details[open] .faq-chevron { transform: rotate(180deg); }
.faq-answer {
  padding: 0 1.5rem 1.25rem;
  font-size: .93rem;
  color: var(--text-mid);
  line-height: 1.7;
}

/* ── BOOKING ─────────────────────────────────────────────── */
.booking {
  background: linear-gradient(135deg, var(--blue-deep) 0%, #1252A3 100%);
  position: relative;
  overflow: hidden;
}
.booking::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,.05) 0%, transparent 70%);
  pointer-events: none;
}
.booking-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.booking-sub {
  color: rgba(255,255,255,.75);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.booking-info { display: flex; flex-direction: column; gap: .75rem; }
.binfo-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: rgba(255,255,255,.85);
  font-size: .95rem;
}
.booking-form-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: 0 20px 60px rgba(0,0,0,.15);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--blue-deep);
  letter-spacing: .03em;
}
.form-note {
  font-size: .75rem;
  color: var(--text-light);
  text-align: center;
  line-height: 1.5;
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact { background: var(--white); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 5rem;
  align-items: start;
}
.contact-items { display: flex; flex-direction: column; gap: 1rem; margin-top: 2rem; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.contact-item:hover { border-color: var(--blue-bright); box-shadow: var(--shadow-card); }
.contact-icon {
  width: 44px; height: 44px;
  background: var(--blue-soft);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 22px; height: 22px; }
.contact-item strong { display: block; font-size: .9rem; color: var(--blue-deep); font-weight: 600; }
.contact-item span { display: block; font-size: .88rem; color: var(--text-mid); }
.map-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(145deg, var(--blue-soft), #DBEAFE);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  color: var(--text-light);
  text-align: center;
}
.map-hint { font-size: .75rem; opacity: .6; }

/* ── FOOTER ──────────────────────────────────────────────── */
.site-footer { background: var(--blue-deep); color: rgba(255,255,255,.8); }
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  padding: 5rem 0 3rem;
}
.footer-brand .logo-name { color: var(--white); }
.footer-brand .logo-tagline { color: rgba(255,255,255,.5); }
.footer-desc { font-size: .88rem; color: rgba(255,255,255,.6); line-height: 1.7; margin-top: 1rem; max-width: 280px; }
.social-links { display: flex; gap: .5rem; margin-top: 1.25rem; }
.social-link {
  width: 38px; height: 38px;
  background: rgba(255,255,255,.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.7);
  transition: all var(--transition);
}
.social-link:hover { background: var(--blue-bright); color: white; transform: translateY(-2px); }
.footer-nav h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.footer-nav ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-nav li a {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-nav li a:hover { color: var(--white); }
.footer-contact h4 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.footer-contact p { font-size: .88rem; color: rgba(255,255,255,.65); margin-bottom: .5rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 1.5rem 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .8rem;
  color: rgba(255,255,255,.45);
}

/* ── FLOAT WHATSAPP ──────────────────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 58px; height: 58px;
  background: var(--green-wa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.4);
  z-index: 900;
  transition: all var(--transition);
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(37,211,102,.5); }
.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(37,211,102,.15);
  animation: wa-pulse 2s ease-in-out infinite;
}
@keyframes wa-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0; }
}

/* ── SCROLL ANIMATIONS ───────────────────────────────────── */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s cubic-bezier(.4,0,.2,1), transform .65s cubic-bezier(.4,0,.2,1);
}
[data-animate="fade-left"] { transform: translateX(28px); }
[data-animate="fade-right"] { transform: translateX(-28px); }
[data-animate].visible {
  opacity: 1;
  transform: translate(0);
}

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero-image { order: -1; max-width: 420px; margin-inline: auto; width: 100%; }
  .hero-tooth-watermark { display: none; }
  .hero-content { text-align: center; }
  .hero-sub { margin-inline: auto; }
  .trust-badges { margin-inline: auto; flex-wrap: wrap; justify-content: center; }
  .hero-actions { justify-content: center; }
  .about-inner { grid-template-columns: 1fr; gap: 3rem; }
  .about-img-wrap { max-width: 360px; margin-inline: auto; width: 100%; }
  .booking-inner { grid-template-columns: 1fr; gap: 3rem; }
  .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  .section { padding: 72px 0; }
  .nav-desktop, .nav-cta { display: none; }
  .hamburger { display: flex; margin-left: auto; }
  .services-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .whyus-grid { grid-template-columns: 1fr 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand { grid-column: auto; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .hero-card-float { left: 50%; transform: translateX(-50%); bottom: 1rem; }
  .about-badge-exp { bottom: -1rem; right: -0.5rem; width: 80px; height: 80px; }
  .exp-num { font-size: 1.3rem; }
  .booking-form-card { padding: 1.75rem; }
}

@media (max-width: 480px) {
  .whyus-grid { grid-template-columns: 1fr; }
  .trust-badges { gap: 1rem; padding: 1rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn-lg { width: 100%; justify-content: center; }
  .whatsapp-float { bottom: 1.25rem; right: 1.25rem; width: 52px; height: 52px; }
}