/* ===================== Luméra redesign — hero ===================== */
:root{
  /* Luméra palette */
  --ink:#0B1D2A;
  --ink-soft:#42566180;
  --porcelain:#F7FAFB;
  --porcelain-2:#EAF4F6;
  --aqua:#36C5D9;
  --mint:#7FF0C8;
  --teal:#0E5E6F;
  --halo:#FFFFFF;
  --grad:linear-gradient(120deg,#36C5D9 0%,#7FF0C8 100%);

  --serif:"Fraunces",Georgia,serif;
  --sans:"Hanken Grotesk",system-ui,sans-serif;
  --maxw:1500px;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:
    radial-gradient(120% 90% at 78% 8%, #EAF7FA 0%, rgba(234,247,250,0) 55%),
    radial-gradient(90% 80% at 12% 100%, #EAFBF3 0%, rgba(234,251,243,0) 60%),
    linear-gradient(180deg,#FBFDFE 0%,#F2F8FA 100%);
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}

/* ===================== NAV ===================== */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  height:84px;
  display:flex; align-items:center; gap:40px;
  padding:0 clamp(20px,3.5vw,56px);
  backdrop-filter:blur(8px);
}
.brand{display:flex; align-items:center; gap:12px; color:var(--ink)}
.brand-mark{width:38px; height:46px; color:var(--teal); display:block}
.brand-mark svg{width:100%; height:100%}
.brand-text strong{font-family:var(--serif); font-weight:500; font-size:24px; letter-spacing:.04em; display:block; line-height:1}
.brand-text .ac{color:var(--aqua)}
.brand-text small{font-size:10px; letter-spacing:.42em; color:var(--ink-soft); font-weight:600}
.nav-links{display:flex; gap:30px; margin-left:24px; flex:1}
.nav-links a{font-size:12.5px; font-weight:600; letter-spacing:.12em; text-transform:uppercase; color:#2c3a44; opacity:.7; transition:opacity .25s, color .25s; position:relative; padding:6px 0}
.nav-links a:hover{opacity:1}
.nav-links a.active{opacity:1; color:var(--teal)}
.nav-links a.active::after{content:""; position:absolute; left:50%; bottom:-2px; width:4px; height:4px; border-radius:50%; background:var(--aqua); transform:translateX(-50%)}
.btn-book{
  display:inline-flex; align-items:center; gap:10px;
  background:var(--ink); color:#fff;
  font-size:12.5px; font-weight:600; letter-spacing:.12em; text-transform:uppercase;
  padding:16px 26px; border-radius:999px;
  transition:transform .3s var(--ease), box-shadow .3s;
}
.btn-book svg{width:17px; height:17px}
.btn-book:hover{transform:translateY(-2px); box-shadow:0 16px 36px -14px rgba(11,29,42,.6)}

/* ===================== HERO LAYOUT ===================== */
.hero{
  position:relative;
  max-width:var(--maxw);
  margin:0 auto;
  min-height:100vh;
  padding:148px clamp(20px,3.5vw,56px) 40px;
}
.hero-glow{
  position:absolute; top:6%; right:4%;
  width:60vw; height:70vh; max-width:920px;
  background:radial-gradient(circle at 60% 45%, rgba(54,197,217,.22), rgba(127,240,200,.12) 38%, transparent 66%);
  filter:blur(10px); z-index:0; pointer-events:none;
}

/* 3D stage — center-right */
.stage{
  position:absolute; z-index:1;
  top:60px; right:0;
  width:62%; height:88%;
  pointer-events:none;
}
#tooth-canvas{width:100%; height:100%; display:block}
.stage-fallback{font-size:180px; text-align:center; line-height:80vh; filter:drop-shadow(0 20px 40px rgba(54,197,217,.4))}

/* Left content */
.hero-content{position:relative; z-index:3; max-width:620px; padding-top:30px}
.eyebrow{display:inline-flex; align-items:center; gap:14px; font-size:13px; font-weight:600; letter-spacing:.22em; text-transform:uppercase; color:var(--teal); margin-bottom:26px}
.eyebrow .rule{width:46px; height:1.5px; background:var(--teal); display:inline-block}
.hero-content h1{
  font-family:var(--serif); font-weight:340;
  font-size:clamp(44px,6.4vw,98px); line-height:.98; letter-spacing:-.015em;
  color:var(--ink);
}
.hero-content h1 em{
  font-style:italic; font-weight:380;
  background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent;
}
.lede{margin-top:30px; font-size:clamp(16px,1.25vw,19px); line-height:1.6; color:#3a4954; max-width:430px}
.hero-cta{display:flex; gap:16px; margin-top:38px; flex-wrap:wrap}
.btn{display:inline-flex; align-items:center; gap:12px; font-size:13px; font-weight:600; letter-spacing:.12em; text-transform:uppercase; padding:19px 32px; border-radius:14px; transition:transform .3s var(--ease), box-shadow .3s, background .3s}
.btn .arr{transition:transform .3s var(--ease)}
.btn:hover .arr{transform:translateX(5px)}
.btn-solid{background:var(--ink); color:#fff}
.btn-solid:hover{transform:translateY(-2px); box-shadow:0 18px 40px -14px rgba(11,29,42,.55)}
.btn-ghost{background:rgba(255,255,255,.6); color:var(--ink); border:1.5px solid rgba(11,29,42,.16)}
.btn-ghost:hover{border-color:var(--aqua); transform:translateY(-2px)}
.watch{display:inline-flex; align-items:center; gap:14px; margin-top:40px; font-size:12px; font-weight:600; letter-spacing:.16em; text-transform:uppercase; color:#2c3a44}
.watch .play{width:44px; height:44px; border-radius:50%; border:1.5px solid rgba(11,29,42,.2); display:inline-flex; align-items:center; justify-content:center; transition:.3s}
.watch .play svg{width:15px; height:15px; color:var(--teal); margin-left:2px}
.watch:hover .play{border-color:var(--aqua); background:rgba(54,197,217,.08)}
.watch .watch-line{width:60px; height:1px; background:rgba(11,29,42,.2)}

/* Right feature rail */
.feature-rail{
  position:absolute; z-index:4; right:clamp(20px,3.5vw,56px); top:46%; transform:translateY(-50%);
  display:flex; flex-direction:column; gap:6px;
  background:linear-gradient(180deg, rgba(11,29,42,.9), rgba(14,52,62,.86));
  border:1px solid rgba(255,255,255,.1);
  border-radius:24px; padding:14px; width:130px;
  box-shadow:0 30px 70px -30px rgba(11,29,42,.7);
  backdrop-filter:blur(6px);
}
.feature{display:flex; flex-direction:column; align-items:center; gap:9px; text-align:center; padding:18px 8px; border-radius:16px; color:#eaf6f9; font-size:12.5px; font-weight:600; line-height:1.25; transition:background .3s}
.feature + .feature{border-top:1px solid rgba(255,255,255,.08)}
.feature:hover{background:rgba(54,197,217,.12)}
.f-ic{width:30px; height:30px; color:var(--mint)}
.f-ic svg{width:100%; height:100%}

/* Bottom service strip */
.svc-strip{
  position:absolute; z-index:4; left:clamp(20px,3.5vw,56px); bottom:34px;
  width:min(64%,860px);
  display:grid; grid-template-columns:repeat(4,1fr);
  background:rgba(255,255,255,.62);
  border:1px solid rgba(255,255,255,.7);
  border-radius:22px; padding:24px 12px;
  box-shadow:0 30px 70px -34px rgba(11,29,42,.4);
  backdrop-filter:blur(14px);
}
.svc{display:flex; gap:12px; padding:4px 16px}
.svc + .svc{border-left:1px solid rgba(11,29,42,.1)}
.s-ic{width:30px; height:30px; color:var(--teal); flex-shrink:0; margin-top:2px}
.s-ic svg{width:100%; height:100%}
.svc h3{font-family:var(--serif); font-weight:500; font-size:15.5px; margin-bottom:5px}
.svc p{font-size:12px; line-height:1.4; color:#56656f; margin-bottom:9px}
.svc a{font-size:10.5px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--teal)}
.svc a:hover{color:var(--aqua)}

/* Trust */
.trust{position:absolute; z-index:4; right:clamp(20px,3.5vw,56px); bottom:46px; text-align:right}
.t-label{font-size:12.5px; color:#56656f; font-weight:500}
.t-row{display:flex; align-items:center; justify-content:flex-end; gap:10px; margin-top:8px}
.stars{color:var(--aqua); letter-spacing:2px; font-size:16px}
.trust strong{font-size:15px}
.avatars{display:inline-flex}
.avatars i{width:26px; height:26px; border-radius:50%; border:2px solid #fff; margin-left:-8px; background:var(--grad)}
.avatars i:nth-child(2){background:linear-gradient(120deg,#7FF0C8,#36C5D9)}
.avatars i:nth-child(3){background:linear-gradient(120deg,#0E5E6F,#36C5D9)}
.t-sub{font-size:12px; color:#56656f}

/* ===================== RESPONSIVE ===================== */
@media (max-width:1100px){
  .nav-links{display:none}
  .stage{width:100%; height:60%; top:auto; bottom:8%; opacity:.5}
  .feature-rail{top:auto; bottom:240px; transform:none; flex-direction:row; width:auto; padding:8px}
  .feature + .feature{border-top:none; border-left:1px solid rgba(255,255,255,.08)}
  .svc-strip{position:static; width:100%; margin-top:40px; grid-template-columns:repeat(2,1fr); gap:10px}
  .svc:nth-child(odd){border-left:none}
  .trust{position:static; text-align:left; margin-top:24px}
  .t-row{justify-content:flex-start}
  .hero{min-height:auto; padding-bottom:60px}
}
@media (max-width:620px){
  .nav{height:70px}
  .svc-strip{grid-template-columns:1fr}
  .svc{border-left:none!important}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}