/* ===== Tokens ===== */
:root{
  --navy: #0B2545;
  --navy-soft: #13315C;
  --blue: #2563EB;
  --blue-deep: #1D4ED8;
  --teal: #3DD6C4;
  --bg: #F4F8FC;
  --bg-alt: #EAF1FB;
  --white: #FFFFFF;
  --text-muted: #5C6B84;
  --line: #DCE6F5;
  --shadow: 0 20px 50px -20px rgba(15, 40, 90, 0.18);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --font-display: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;
}

*{ box-sizing: border-box; margin:0; padding:0; }
html{ scroll-behavior: smooth; }
body{
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--navy);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ text-decoration:none; color:inherit; }
ul{ list-style:none; }
button{ font-family: inherit; cursor:pointer; border:none; background:none; }

.container{
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.grad-text{
  background: linear-gradient(100deg, var(--blue) 10%, var(--teal) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow{
  display:inline-block;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-deep);
  margin-bottom: 16px;
}

h1,h2,h3,h4{ font-family: var(--font-display); color: var(--navy); line-height:1.1; }
h1{ font-size: clamp(2.8rem, 5vw, 4rem); font-weight:700; letter-spacing:-0.01em; }
h2{ font-size: clamp(2.2rem, 3.6vw, 2.9rem); font-weight:700; letter-spacing:-0.01em; margin-bottom:18px;}
p{ color: var(--text-muted); line-height:1.75; font-size:17px; }

/* ===== Buttons ===== */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 17px 32px;
  border-radius: 999px;
  font-weight:600;
  font-size: 14.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  white-space: nowrap;
}
.btn svg{ flex-shrink:0; }
.btn-primary{
  background: linear-gradient(100deg, var(--blue), var(--blue-deep));
  color:#fff;
  box-shadow: 0 12px 24px -8px rgba(37,99,235,0.55);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 16px 30px -8px rgba(37,99,235,0.6); }
.btn-small{ padding: 12px 24px; font-size:14.5px; }
.btn-ghost{
  background: #fff;
  color: var(--navy);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover{ border-color: var(--blue); color: var(--blue-deep); transform: translateY(-2px);}
.btn-outline{
  background:transparent;
  color: var(--blue-deep);
  border: 1.5px solid var(--blue-deep);
  padding: 16px 28px;
}
.btn-outline:hover{ background: var(--blue-deep); color:#fff; }
.btn-light{
  background:#fff;
  color: var(--blue-deep);
  box-shadow: 0 10px 24px -8px rgba(0,0,0,0.25);
}
.btn-light:hover{ transform: translateY(-2px); }

/* ===== Header ===== */
.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(244,248,252,0.75);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220,230,245,0.7);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 20px 24px;
}
.logo{ display:flex; align-items:center; gap:10px; }
.logo-text{
  font-family: var(--font-display);
  font-weight:700;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--navy);
}
.logo-text em{ font-style:normal; color: var(--blue); display:block; font-size:12.5px; letter-spacing:0.18em; font-weight:600; }
.logo-text.light{ color:#fff; }
.logo-text.light em{ color: var(--teal); }

.main-nav{ display:flex; gap: 34px; }
.main-nav a{
  font-size: 14px; font-weight:600; color: var(--navy-soft);
  text-transform: uppercase; letter-spacing: 0.04em;
  position:relative; padding-bottom: 4px;
  transition: color .2s ease;
}
.main-nav a:hover{ color: var(--blue-deep); }
.main-nav a.active{ color: var(--blue-deep); }
.main-nav a.active::after{
  content:""; position:absolute; left:0; bottom:0; width:100%; height:2px;
  background: var(--blue); border-radius:2px;
}

.header-actions{ display:flex; align-items:center; gap: 16px; }
.nav-toggle{ display:none; flex-direction:column; gap:5px; width:26px; }
.nav-toggle span{ height:2px; background: var(--navy); border-radius:2px; transition: all .25s ease; }

/* ===== Hero ===== */
.hero{ position:relative; padding: 64px 0 40px; overflow:hidden; }
.hero-bg-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 20%, black, transparent);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items:center;
}
.hero-sub{ max-width: 520px; margin-bottom: 32px; font-size:18.5px; }
.hero-ctas{ display:flex; gap:14px; margin-bottom:36px; flex-wrap:wrap; }

.hero-trust{ display:flex; align-items:center; gap:14px; }
.avatar-stack{ display:flex; }
.avatar{
  width:44px; height:44px; border-radius:50%;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color:#fff; font-size:12.5px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
  border: 2.5px solid var(--bg);
  margin-left: calc(-1 * 12px);
}
.avatar:first-child{ margin-left:0; }
.trust-text{ display:flex; flex-direction:column; gap:2px; }
.trust-label{ font-size:15px; font-weight:600; color: var(--navy-soft); }
.stars{ font-size:14px; color:#FFB020; letter-spacing:2px; }
.stars b{ color: var(--navy-soft); margin-left:6px; letter-spacing:normal; font-size:14px;}

/* Hero visual - light clinic scene illustration */
.hero-visual{ position:relative; }
.clinic-scene{
  position:relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow:hidden;
  background: #EAF3FC;
}
.clinic-svg{ display:block; width:100%; height:auto; }
.clinic-image{ display:block; width:100%; height:auto; object-fit: cover; }
.clinic-model{ display:block; width:100%; height:420px; --poster-color: transparent; }
.chair-group{ animation: floatY 5s ease-in-out infinite; transform-origin: center; }
.monitor-group{ animation: floatY 5s ease-in-out infinite; animation-delay: -1.5s; transform-origin: center; }
@keyframes floatY{
  0%, 100%{ transform: translateY(0); }
  50%{ transform: translateY(-6px); }
}
.scene-tag{
  position:absolute; top:20px; right:24px;
  background: rgba(11,37,69,0.85);
  color: var(--teal);
  font-family: var(--font-display);
  font-size: 12px; letter-spacing: 0.12em;
  padding: 8px 14px; border-radius: 999px;
  display:flex; align-items:center; gap:6px;
}
.scene-tag::before{
  content:""; width:6px; height:6px; border-radius:50%; background: var(--teal);
  box-shadow: 0 0 8px 2px rgba(61,214,196,0.8);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{
  0%, 100%{ opacity:1; }
  50%{ opacity:0.3; }
}

/* Feature strip */
.feature-strip{
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 38px 30px;
  margin-top: 56px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}
.feature-item{ text-align:left; }
.feature-icon{
  display:inline-flex; align-items:center; justify-content:center;
  width:60px; height:60px; border-radius: 16px;
  background: var(--bg-alt);
  color: var(--blue-deep);
  margin-bottom: 18px;
}
.feature-item h3{ font-size:18px; margin-bottom:10px; }
.feature-item p{ font-size:15px; }

/* ===== About ===== */
.about{ padding: 110px 0; }
.about-grid{
  display:grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 60px;
  align-items:center;
}
.about-image{
  position:relative;
  aspect-ratio: 4/3.1;
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, var(--navy), #0E3A6F 70%);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  box-shadow: var(--shadow);
}
.about-glow{
  position:absolute; width:70%; height:70%; border-radius:50%;
  background: radial-gradient(circle, rgba(61,214,196,0.35), transparent 70%);
  filter: blur(10px);
}
.about-tooth-hud{ width:120px; height:132px; position:relative; z-index:2; filter: drop-shadow(0 0 16px rgba(61,214,196,0.6)); }
.about-model{ width:100%; height:100%; position:relative; z-index:2; --poster-color: transparent; }
.about-image-label{
  position:absolute; bottom:22px; left:24px; color:#fff; font-family: var(--font-display);
  font-size:13.5px; letter-spacing:0.14em; opacity:0.75;
}
.stat-card{
  position:absolute; right:-24px; bottom:-30px;
  background:#fff; border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 22px 26px;
  display:flex; align-items:center; gap:20px;
}
.stat{ display:flex; align-items:center; gap:10px; }
.stat-icon{ color: var(--blue-deep); background: var(--bg-alt); width:34px; height:34px; border-radius:10px; display:flex; align-items:center; justify-content:center; flex-shrink:0;}
.stat strong{ display:block; font-family: var(--font-display); font-size:23px; color: var(--navy); }
.stat small{ font-size:12.5px; color: var(--text-muted); }
.stat-divider{ width:1px; height:34px; background: var(--line); }

.about-copy p{ margin-bottom: 20px; max-width: 480px; }
.about-list{ margin-bottom: 28px; display:flex; flex-direction:column; gap:12px; }
.about-list li{
  position:relative; padding-left: 28px; font-size:16px; color: var(--navy-soft); font-weight:500;
}
.about-list li::before{
  content:""; position:absolute; left:0; top:5px; width:16px; height:16px; border-radius:50%;
  background: linear-gradient(135deg, var(--blue), var(--teal));
}

/* ===== Types of Teeth ===== */
.teeth-types{ padding: 110px 0; }
.teeth-types-grid{
  display:grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 60px;
  align-items:center;
}
.teeth-types-copy p{ margin-bottom: 20px; max-width: 480px; color: var(--text-muted); }
.teeth-types-visual .about-image{ aspect-ratio: 4/3.6; }

/* ===== Services ===== */
.services{ padding: 40px 0 110px; }
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap: 24px; margin-bottom: 44px; flex-wrap:wrap; }
.section-head h2{ margin-bottom:0; }
.view-all{ display:flex; align-items:center; gap:6px; font-weight:600; font-size:15.5px; color: var(--blue-deep); white-space:nowrap; padding-bottom: 6px;}
.view-all svg{ transition: transform .2s ease; }
.view-all:hover svg{ transform: translateX(4px); }

.services-grid{ display:grid; grid-template-columns: repeat(5, 1fr); gap:22px; }
.service-card{
  background:#fff; border-radius: var(--radius-md); padding: 34px 26px;
  border: 1px solid var(--line);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.service-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.service-icon{
  display:inline-flex; align-items:center; justify-content:center;
  width:60px; height:60px; border-radius:16px;
  background: var(--bg-alt); color: var(--blue-deep); margin-bottom:20px;
}
.service-card h3{ font-size:18.5px; margin-bottom:10px; }
.service-card p{ font-size:15px; }

/* ===== CTA ===== */
.cta{ padding: 20px 0 100px; }
.cta-inner{
  background: linear-gradient(120deg, var(--navy) 0%, #0E3A6F 55%, #123E77 100%);
  border-radius: var(--radius-lg);
  padding: 48px 50px;
  display:flex; align-items:center; gap:30px;
  position:relative; overflow:hidden;
}
.cta-inner::after{
  content:""; position:absolute; right:-60px; top:-60px; width:260px; height:260px; border-radius:50%;
  background: radial-gradient(circle, rgba(61,214,196,0.25), transparent 70%);
}
.cta-icon{
  width:70px; height:70px; border-radius:18px; flex-shrink:0;
  background: rgba(255,255,255,0.08); border:1px solid rgba(61,214,196,0.3);
  display:flex; align-items:center; justify-content:center;
}
.cta-copy{ flex:1; }
.cta-copy h2{ color:#fff; margin-bottom:10px; font-size: clamp(1.8rem, 3vw, 2.4rem); }
.cta-copy p{ color: rgba(255,255,255,0.75); }

/* ===== Footer ===== */
.site-footer{ background: var(--navy); padding: 64px 0 24px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap:40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand p{ color: rgba(255,255,255,0.55); margin-top:14px; max-width:300px; font-size:15px; }
.footer-col h4{ color:#fff; font-size:16px; margin-bottom:18px; letter-spacing:0.04em; }
.footer-col a{ display:block; color: rgba(255,255,255,0.6); font-size:15px; margin-bottom:12px; transition: color .2s ease; }
.footer-col a:hover{ color: var(--teal); }
.footer-bottom{ padding-top: 22px; text-align:center; color: rgba(255,255,255,0.4); font-size:13.5px; }

/* ===== Wave dividers (organic section seams) ===== */
.wave-divider{ position: relative; line-height: 0; margin: -1px 0; z-index: 1; }
.wave-divider svg{ display:block; width:100%; height:70px; }
.wave-to-alt svg path{ fill: var(--bg-alt); }
.wave-to-white svg path{ fill: var(--white); }
.wave-to-navy svg path{ fill: var(--navy); }

/* ===== Doctors / Team ===== */
.doctors{ position:relative; padding: 70px 0 90px; background: var(--bg-alt); overflow:hidden; }
.doctor-blob-bg{
  position:absolute; top:-120px; right:-160px; width:480px; height:480px;
  background: radial-gradient(circle, rgba(37,99,235,0.10), transparent 70%);
  border-radius: 42% 58% 63% 37% / 47% 44% 56% 53%;
  pointer-events:none;
}
.section-lede{ max-width: 400px; margin-bottom:0; align-self:flex-end; font-size:16px; }
.doctors-row{
  display:flex; gap: 26px; margin-top: 50px; flex-wrap:wrap; justify-content:center;
}
.doctor-card{
  flex: 1 1 220px; max-width: 240px; text-align:center;
  padding-top: 6px;
}
.doctor-card:nth-child(odd){ transform: translateY(0); }
.doctor-card:nth-child(even){ transform: translateY(28px); }
.doctor-photo{
  width: 168px; height: 168px; margin: 0 auto 24px;
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-family: var(--font-display); font-weight:700; font-size:29px;
  box-shadow: var(--shadow);
  position:relative;
  transition: border-radius .6s ease;
}
.doctor-photo::after{
  content:""; position:absolute; inset:-8px;
  border: 1.5px dashed rgba(37,99,235,0.35);
  border-radius: inherit;
}
.doctor-card:hover .doctor-photo{ border-radius: 50% !important; }
.blob-1{ background: linear-gradient(135deg, var(--blue), var(--teal)); border-radius: 63% 37% 54% 46% / 55% 48% 52% 45%; }
.blob-2{ background: linear-gradient(135deg, var(--navy-soft), var(--blue)); border-radius: 42% 58% 63% 37% / 47% 44% 56% 53%; }
.blob-3{ background: linear-gradient(135deg, var(--teal), var(--blue-deep)); border-radius: 57% 43% 38% 62% / 45% 60% 40% 55%; }
.blob-4{ background: linear-gradient(135deg, var(--blue-deep), var(--navy-soft)); border-radius: 48% 52% 66% 34% / 60% 40% 60% 40%; }
.doctor-card h3{ font-size:19px; margin-bottom:6px; }
.doctor-role{ display:block; font-size:13px; font-weight:600; color: var(--blue-deep); text-transform:uppercase; letter-spacing:0.03em; margin-bottom:12px; }
.doctor-card p{ font-size:15px; }

/* ===== Testimonials ===== */
.testimonials{ padding: 80px 0 100px; background: var(--white); }
.testimonial-track{
  display:flex; gap: 28px; margin-top: 44px;
  overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px;
}
.testimonial-bubble{
  scroll-snap-align: start;
  flex: 0 0 min(360px, 85vw);
  background: var(--bg-alt);
  padding: 36px 30px 26px;
  position: relative;
  border-radius: 34px 34px 34px 6px;
}
.testimonial-bubble::after{
  content:""; position:absolute; left:32px; bottom:-14px; width:26px; height:26px;
  background: var(--bg-alt);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}
.quote-mark{
  font-family: var(--font-display); font-size:58px; line-height:1; color: var(--teal);
  display:block; margin-bottom: 8px; opacity:0.8;
}
.testimonial-bubble p{ font-size:16px; margin-bottom: 24px; color: var(--navy-soft); }
.testimonial-bubble footer{ display:flex; align-items:center; gap:12px; }
.t-avatar{
  width:44px; height:44px; border-radius:50%; flex-shrink:0;
  background: linear-gradient(135deg, var(--blue), var(--teal));
  color:#fff; font-size:12.5px; font-weight:700;
  display:flex; align-items:center; justify-content:center;
}
.testimonial-bubble footer strong{ display:block; font-size:15px; }
.testimonial-bubble footer small{ font-size:13px; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq{ padding: 30px 0 100px; background: var(--white); }
.faq-grid{ display:grid; grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items:start; }
.faq-intro p{ margin: 16px 0 26px; max-width: 360px; }
.faq-list{ display:flex; flex-direction:column; }
.faq-item{ border-bottom: 1px solid var(--line); }
.faq-item:first-child{ border-top: 1px solid var(--line); }
.faq-question{
  width:100%; display:flex; align-items:center; justify-content:space-between;
  padding: 26px 4px; text-align:left;
  font-family: var(--font-display); font-weight:600; font-size:17.5px; color: var(--navy);
}
.faq-toggle{
  flex-shrink:0; width:34px; height:34px; border-radius:50%;
  background: var(--bg-alt); color: var(--blue-deep);
  display:flex; align-items:center; justify-content:center;
  font-size:18px; margin-left:16px;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}
.faq-item.open .faq-toggle{ transform: rotate(135deg); background: var(--blue-deep); color:#fff; }
.faq-answer{
  max-height:0; overflow:hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.faq-answer p{ padding: 0 4px 24px; font-size:15.5px; max-width: 500px; }
.faq-item.open .faq-answer{ max-height: 220px; }

/* ===== Reveal animation ===== */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; transition-delay: var(--delay, 0s); }
.reveal.in-view{ opacity:1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce){
  .reveal{ transition:none; opacity:1; transform:none; }
  .scan-line{ animation:none; }
}

/* ===== Responsive ===== */
@media (max-width: 980px){
  .main-nav{ display:none; }
  .nav-toggle{ display:flex; }
  .hero-grid{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; max-width: 420px; margin: 0 auto; }
  .feature-strip{ grid-template-columns: repeat(2, 1fr); }
  .about-grid{ grid-template-columns:1fr; }
  .teeth-types-grid{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .footer-grid{ grid-template-columns:1fr; gap:30px; }
  .cta-inner{ flex-direction:column; text-align:center; padding: 40px 28px; }
  .faq-grid{ grid-template-columns: 1fr; gap: 34px; }
  .doctor-card:nth-child(even){ transform:none; }
  .section-head{ flex-direction:column; align-items:flex-start; }
  .section-lede{ align-self:flex-start; }
}
@media (max-width: 560px){
  .feature-strip{ grid-template-columns: 1fr; padding: 28px 20px; }
  .services-grid{ grid-template-columns: 1fr; }
  .hero-ctas{ flex-direction:column; align-items:stretch; }
  .hero-ctas .btn{ justify-content:center; }
  .stat-card{ right:12px; left:12px; bottom:-24px; justify-content:space-around; }
  .doctors-row{ gap: 40px 20px; }
  .testimonial-bubble{ flex-basis: 82vw; }
  .doctor-photo{ width:132px; height:132px; }
  h1{ font-size: clamp(2.3rem, 8vw, 3rem); }
}