/* ===== Tokens ===== */
:root{
  --bg:#ffffff;
  --bg-alt:#f4f9f7;
  --bg-alt-2:#eef6f2;
  --ink:#1e2b27;
  --ink-soft:#5c6b66;
  --ink-faint:#93a19c;
  --accent:#2f7d68;
  --accent-dark:#1f5c4c;
  --accent-light:#e4f2ec;
  --line:#e6ece9;
  --line-strong:#d3ddd8;
  --radius:18px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(30,60,50,.06);
  --shadow-md:0 12px 40px rgba(30,60,50,.10);
  --wrap:1180px;
  --font-display:'Fraunces', 'Georgia', serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3{font-family:var(--font-display);font-weight:500;margin:0;letter-spacing:-0.01em;}
p{margin:0;}

.wrap{
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 28px;
}

.eyebrow{
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.14em;
  color:var(--accent);
  font-weight:600;
  margin:0 0 14px;
}
.eyebrow.center{text-align:center;}

.section-title{
  font-size:clamp(1.7rem, 3vw, 2.4rem);
  line-height:1.15;
  margin:0 0 20px;
}
.section-title.center{text-align:center;margin-left:auto;margin-right:auto;max-width:640px;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:15px 28px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 24px rgba(47,125,104,.28);
}
.btn-primary:hover{background:var(--accent-dark); transform:translateY(-1px);}
.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--ink);
}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent);}
.btn-sm{padding:10px 20px; font-size:.85rem;}
.btn-block{width:100%;}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.75);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{
  border-color:var(--line);
  box-shadow:0 4px 20px rgba(30,60,50,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:74px;
}
.logo{display:flex; align-items:center; gap:10px; font-weight:600;}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;height:34px;
  border-radius:10px;
  background:var(--accent-light);
  color:var(--accent);
  font-size:1.1rem;
}
.logo-text{font-family:var(--font-display); font-size:1.15rem; color:var(--ink);}
.logo-thin{display:block; font-family:var(--font-body); font-weight:500; font-size:.62rem; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-faint);}

.main-nav{display:flex; gap:32px;}
.main-nav a{font-size:.92rem; font-weight:500; color:var(--ink-soft); transition:color .15s ease;}
.main-nav a:hover{color:var(--accent);}

.header-actions{display:flex; align-items:center; gap:16px;}
.nav-toggle{display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px;}
.nav-toggle span{width:22px; height:2px; background:var(--ink); border-radius:2px;}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:96px 0 80px;
  background:
    radial-gradient(600px 320px at 85% 0%, var(--accent-light), transparent 60%),
    radial-gradient(500px 280px at 10% 10%, #fbf6ea, transparent 55%);
  overflow:hidden;
}
.hero-inner{text-align:center; max-width:760px;}
.hero h1{
  font-size:clamp(2.4rem, 6vw, 4.2rem);
  line-height:1.06;
  margin-bottom:22px;
}
.hero-sub{
  font-size:1.08rem;
  color:var(--ink-soft);
  max-width:560px;
  margin:0 auto 34px;
}
.hero-cta{display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-bottom:56px;}
.hero-trust{display:flex; justify-content:center; gap:40px; flex-wrap:wrap;}
.trust-item{display:flex; flex-direction:column; align-items:center;}
.trust-item strong{font-family:var(--font-display); font-size:1.6rem; color:var(--accent-dark);}
.trust-item span{font-size:.8rem; color:var(--ink-faint); text-transform:uppercase; letter-spacing:.06em;}

.hero-scroll-hint{
  display:flex; flex-direction:column; align-items:center; gap:8px;
  margin-top:20px;
  color:var(--ink-faint);
  font-size:.72rem;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.hero-scroll-line{width:1px; height:34px; background:linear-gradient(var(--accent), transparent);}

/* ===== Background Circles Pattern ===== */
.bg-shape {
  position: absolute;
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}
.circle-1 {
  width: 450px;
  height: 450px;
  border: 1px solid rgba(47, 125, 104, 0.15);
  top: -120px;
  left: -150px;
}
.circle-2 {
  width: 700px;
  height: 700px;
  border: 1px dashed rgba(47, 125, 104, 0.2);
  bottom: -250px;
  right: -200px;
  animation: spin 60s linear infinite;
}
.circle-3 {
  width: 300px;
  height: 300px;
  border: 1.5px solid rgba(47, 125, 104, 0.08);
  top: 15%;
  right: 15%;
}
@keyframes spin {
  100% { transform: rotate(360deg); }
}

/* ===== Hero Images ===== */
.hero-image {
  position: absolute;
  background: #fff;
  padding: 10px;
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(30, 60, 50, 0.08);
  z-index: 2;
  border: 1px solid var(--line);
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
}
.image-badge {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  color: var(--accent-dark);
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(30, 60, 50, 0.12);
  white-space: nowrap;
  pointer-events: none;
  border: 1px solid var(--line);
}

.image-left {
  left: clamp(10px, 5vw, 90px);
  top: 18%;
  width: clamp(160px, 18vw, 260px);
  aspect-ratio: 3/4;
  animation: float-left 6s ease-in-out infinite;
}
.image-right {
  right: clamp(10px, 5vw, 90px);
  top: 32%;
  width: clamp(150px, 16vw, 240px);
  aspect-ratio: 4/3;
  animation: float-right 7s ease-in-out infinite;
}

@keyframes float-left {
  0%, 100% { transform: translateY(0px) rotate(-5deg); }
  50% { transform: translateY(-15px) rotate(-5deg); }
}
@keyframes float-right {
  0%, 100% { transform: translateY(0px) rotate(4deg); }
  50% { transform: translateY(-12px) rotate(4deg); }
}

@media (max-width: 1100px) {
  .bg-shape { display: none; }
  .hero{
    display:grid;
    grid-template-columns:1fr 1fr;
    column-gap:16px;
    padding-left:max(16px, calc(50% - 360px));
    padding-right:max(16px, calc(50% - 360px));
  }
  .hero .hero-inner{order:-1; grid-column:1 / -1; width:100%; padding:0;}
  .hero-scroll-hint{order:2; grid-column:1 / -1;}
  .hero-image{
    position:relative;
    left:auto; right:auto; top:auto;
    width:auto;
    aspect-ratio:1 / 1;
    margin:32px 0 26px;
    animation:none;
  }
  .image-left{transform:rotate(-2deg);}
  .image-right{transform:rotate(2deg);}
}

/* ===== Page hero (subpages) ===== */
.page-hero{
  position:relative;
  padding:150px 0 64px;
  text-align:center;
  background:
    radial-gradient(600px 300px at 85% 0%, var(--accent-light), transparent 60%),
    radial-gradient(500px 260px at 10% 10%, #fbf6ea, transparent 55%);
}
.page-hero .eyebrow{justify-content:center;}
.page-hero h1{
  font-size:clamp(2rem, 4.5vw, 3.2rem);
  line-height:1.1;
  margin-bottom:18px;
}
.page-hero p:not(.eyebrow){
  max-width:600px;
  margin:0 auto;
  color:var(--ink-soft);
  font-size:1.05rem;
}
.breadcrumb{
  display:flex; justify-content:center; gap:8px;
  font-size:.82rem; color:var(--ink-faint);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--ink-faint);}
.breadcrumb a:hover{color:var(--accent);}

/* ===== Scroll scrubbed scene ===== */
.scroll-scene{
  position:relative;
  height:400vh;
  background:linear-gradient(#ffffff, #fbfdfc);
}
.scroll-scene-sticky{
  position:sticky;
  top:0;
  height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
#tooth-canvas{
  width:min(70vw, 620px);
  height:min(70vw, 620px);
  max-height:70vh;
}
.scene-caption{
  position:absolute;
  max-width:280px;
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s ease, transform .5s ease;
  pointer-events:none;
}
.scene-caption.is-active{opacity:1; transform:translateY(0);}
.scene-caption-num{
  display:block;
  font-family:var(--font-display);
  font-size:2rem;
  color:var(--accent-light);
  -webkit-text-stroke:1px var(--accent);
  margin-bottom:6px;
}
.scene-caption p{font-size:1rem; color:var(--ink-soft);}
.scene-caption--1{left:8%; top:22%; text-align:left;}
.scene-caption--2{right:8%; top:38%; text-align:right;}
.scene-caption--3{left:10%; bottom:16%; text-align:left;}

.scroll-progress-track{
  position:absolute;
  left:50%; bottom:32px; transform:translateX(-50%);
  width:160px; height:3px; border-radius:3px;
  background:var(--line);
  overflow:hidden;
}
.scroll-progress-fill{
  width:0%; height:100%;
  background:var(--accent);
  border-radius:3px;
}

/* ===== Sections ===== */
.section{padding:110px 0;}
.section-alt{background:var(--bg-alt);}

/* ===== Services ===== */
.service-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:24px;
}
.service-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease, box-shadow .2s ease;
}
.service-card:hover{transform:translateY(-4px); box-shadow:var(--shadow-md);}
.service-card--featured{
  grid-column:span 2;
  grid-row:span 2;
  background:linear-gradient(160deg, #fff, var(--accent-light) 140%);
  border-color:var(--line-strong);
  display:flex;
  flex-direction:column;
}
.service-tag{
  align-self:flex-start;
  font-size:.7rem;
  text-transform:uppercase;
  letter-spacing:.08em;
  font-weight:700;
  color:var(--accent-dark);
  background:#fff;
  border:1px solid var(--accent);
  padding:4px 10px;
  border-radius:999px;
  margin-bottom:14px;
}
.service-icon{
  width:52px; height:52px;
  border-radius:14px;
  background:var(--accent-light);
  color:var(--accent-dark);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px;
}
.service-icon svg{width:28px; height:28px;}
.service-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 20px;
}
.service-card h3{font-size:1.15rem; margin-bottom:10px;}
.service-card p{color:var(--ink-soft); font-size:.94rem;}
.service-card--featured h3{font-size:1.5rem;}
.service-list{margin:18px 0 24px; display:flex; flex-direction:column; gap:8px;}
.service-list li{
  font-size:.9rem;
  color:var(--ink-soft);
  padding-left:22px;
  position:relative;
}
.service-list li::before{
  content:"✓";
  position:absolute; left:0; top:0;
  color:var(--accent);
  font-weight:700;
}
.service-card--featured .btn{margin-top:auto; align-self:flex-start;}

/* ===== Why grid ===== */
.why-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:64px;
  align-items:center;
}
.why-lead{color:var(--ink-soft); font-size:1.05rem; margin-bottom:36px;}
.why-stats{display:grid; grid-template-columns:repeat(2, 1fr); gap:24px;}
.stat strong{display:block; font-family:var(--font-display); font-size:1.8rem; color:var(--accent-dark);}
.stat span{font-size:.82rem; color:var(--ink-faint);}
.why-image{
  background:#fff;
  border-radius:24px;
  border:1px solid var(--line);
  padding:40px;
  box-shadow:var(--shadow-sm);
}
.tooth-illustration{width:100%; height:auto;}

/* ===== Appointment ===== */
.appointment-grid{
  display:grid;
  grid-template-columns:.85fr 1.15fr;
  gap:64px;
  align-items:start;
}
.appointment-info p{color:var(--ink-soft); margin-bottom:32px;}
.contact-list{display:flex; flex-direction:column; gap:18px;}
.contact-list li{font-size:.95rem; color:var(--ink); padding-bottom:16px; border-bottom:1px solid var(--line);}
.contact-label{display:block; font-size:.74rem; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-faint); margin-bottom:4px;}

.appointment-form{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:36px;
  box-shadow:var(--shadow-md);
  display:flex;
  flex-direction:column;
  gap:18px;
}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
.appointment-form label{display:flex; flex-direction:column; gap:8px; font-size:.85rem; font-weight:600; color:var(--ink-soft);}
.appointment-form input,
.appointment-form select,
.appointment-form textarea{
  font-family:var(--font-body);
  font-size:.95rem;
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1.5px solid var(--line-strong);
  background:var(--bg-alt);
  color:var(--ink);
  outline:none;
  transition:border-color .15s ease;
}
.appointment-form input:focus,
.appointment-form select:focus,
.appointment-form textarea:focus{border-color:var(--accent);}
.form-note{font-size:.78rem; color:var(--ink-faint); text-align:center;}
.form-note.is-success{color:var(--accent-dark); font-weight:600;}

/* ===== Footer ===== */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:64px 0 24px;
}
.wrap.footer-inner{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:60px;
  padding-bottom:48px;
}
.footer-brand{display:grid; grid-template-columns:auto 1fr; column-gap:10px; align-items:center; align-content:start;}
.footer-brand p{grid-column:1 / -1;margin-top:16px; color:var(--ink-soft); font-size:.9rem; max-width:420px;}
.footer-links{display:grid; grid-template-columns:1fr 1fr; gap:24px;}
.footer-links h4{font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-faint); margin-bottom:14px;}
.footer-links a, .footer-links span{display:block; font-size:.9rem; color:var(--ink-soft); margin-bottom:10px;}
.wrap.footer-bottom{border-top:1px solid var(--line); padding-top:20px;}
.footer-bottom p{font-size:.8rem; color:var(--ink-faint);}

/* ===== Responsive ===== */
@media (max-width: 900px){
  .main-nav{
    display:none;
    position:absolute;
    top:100%; left:0; right:0;
    flex-direction:column;
    gap:0;
    padding:6px 16px 14px;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 14px 28px rgba(30,60,50,.08);
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:15px 12px; font-size:1rem; border-bottom:1px solid var(--line);}
  .main-nav a:last-child{border-bottom:none;}
  .nav-toggle{display:flex; padding:13px 10px;}
  .section{padding:80px 0;}
  .page-hero{padding:72px 0 48px;}
  .service-grid{grid-template-columns:repeat(2, 1fr);}
  .service-card--featured{grid-column:span 2;}
  .why-grid, .appointment-grid, .wrap.footer-inner{grid-template-columns:1fr; gap:36px;}
  .why-image{order:-1;}
  .why-image:has(.tooth-illustration){order:2; max-width:320px; width:100%; margin:0 auto;}
}
@media (max-width: 600px){
  .hero{padding-top:52px; padding-bottom:40px;}
  .hero-cta{margin-bottom:36px;}
  .hero-trust{display:grid; grid-template-columns:repeat(3, 1fr); gap:8px;}
  .trust-item{text-align:center;}
  .trust-item strong{font-size:1.4rem;}
  .trust-item span{font-size:.66rem; letter-spacing:.04em; line-height:1.3;}
  .hero-image{aspect-ratio:4 / 5;}
  .section{padding:64px 0;}
  .page-hero{padding:56px 0 40px;}
  .page-hero + .section{padding-top:32px;}
  .service-card{padding:24px;}
  .why-image{padding:14px; border-radius:20px;}
  .why-image:has(.tooth-illustration){padding:24px; max-width:260px;}
  .why-stats{gap:18px;}
  .appointment-form{padding:22px 18px;}
  .scroll-scene-sticky{padding-top:90px;}
  #tooth-canvas{width:min(88vw, 620px); height:min(88vw, 620px);}
  .footer-links a, .footer-links span{padding:5px 0; margin-bottom:4px;}
  .wrap.footer-inner{gap:28px; padding-bottom:32px;}
  .site-footer{padding-top:48px;}
  .service-grid{grid-template-columns:1fr;}
  .service-card--featured{grid-column:span 1; grid-row:span 1;}
  .form-row{grid-template-columns:1fr;}
  .footer-links{grid-template-columns:1fr 1fr;}
  .scene-caption{
    max-width:82vw;
    font-size:.9rem;
    left:50% !important;
    right:auto !important;
    top:92px !important;
    bottom:auto !important;
    transform:translate(-50%, 14px);
    text-align:center !important;
  }
  .scene-caption.is-active{transform:translate(-50%, 0);}
}
@media (max-width: 420px){
  .wrap{padding:0 16px;}
  .logo-thin{display:none;}
  .footer-brand .logo-thin{display:block;}
  .logo-text{font-size:1rem;}
  .header-actions{gap:8px;}
  .header-actions .btn-sm{padding:8px 12px; font-size:.76rem;}
}