/* ============================================================
   Oyster Dental Clinic — Opção 04 "Oyster Nocturne"
   Design editorial escuro espelhado de desenhando.com.br/etec,
   adaptado à identidade Oyster (navy + gold), Cormorant + Inter.
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}

:root{
  --bg:#0b1426;
  --bg-2:#111d36;
  --bg-3:#16243f;
  --panel:#0e1a30;
  --cream:#f1ebde;
  --cream-2:#c4cad6;
  --muted:#8089a0;
  --gold:#c9a961;
  --gold-2:#ddc187;
  --line:rgba(201,169,97,.22);
  --line-soft:rgba(255,255,255,.08);
  --container:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
  font-synthesis:none;
}

body{
  font-family:'Inter',-apple-system,'Segoe UI',sans-serif;
  background:var(--bg);
  color:var(--cream-2);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:48px}
section{position:relative}
::selection{background:var(--gold);color:var(--bg)}

.serif{font-family:'Cormorant Garamond',Georgia,serif}
h1,h2,h3{font-family:'Cormorant Garamond',Georgia,serif;font-weight:500;line-height:1.08;letter-spacing:-.01em;color:var(--cream)}
em{font-style:italic;color:var(--gold-2)}

/* ---------- EYEBROW ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:.72rem;font-weight:500;letter-spacing:.32em;
  text-transform:uppercase;color:var(--gold);margin-bottom:24px;
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--gold)}
.eyebrow.c{justify-content:center}
.eyebrow.c::after{content:"";width:34px;height:1px;background:var(--gold)}

/* ---------- TITLES ---------- */
.h-display{font-size:clamp(2.6rem,5.6vw,5rem);font-weight:500;color:var(--cream)}
.h-section{font-size:clamp(2.1rem,4vw,3.6rem);font-weight:500}
.text-lead{font-size:1.05rem;color:var(--cream-2);max-width:60ch}
.center{text-align:center}
.center .text-lead{margin-inline:auto}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;gap:11px;
  font-family:'Inter',sans-serif;font-size:.76rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;
  padding:17px 32px;border:1px solid var(--gold);cursor:pointer;
  transition:.35s var(--ease);white-space:nowrap;
}
.btn .ar{transition:transform .35s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}
.btn-gold{background:var(--gold);color:var(--bg);border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-2);border-color:var(--gold-2)}
.btn-ghost{background:transparent;color:var(--cream)}
.btn-ghost:hover{background:rgba(201,169,97,.1);color:var(--gold-2)}
.btn-block{width:100%;justify-content:center}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:90;
  transition:background .4s,backdrop-filter .4s,padding .4s;
  padding:8px 0;
}
.nav.scrolled{
  background:rgba(11,20,38,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-soft);padding:2px 0;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:14px 0}
.brand-logo{height:46px;width:auto;display:block;transition:height .4s}
.nav.scrolled .brand-logo{height:38px}
.nav-links{display:flex;gap:26px}
.nav-links a{
  font-size:.72rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cream-2);transition:.25s;position:relative;padding:4px 0;white-space:nowrap;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--gold)}
.nav-right{display:flex;align-items:center;gap:18px}
.lang{display:flex;gap:3px}
.lang button{
  background:none;border:none;cursor:pointer;font-size:.68rem;font-weight:600;
  letter-spacing:.1em;padding:5px 7px;color:var(--muted);transition:.2s;
}
.lang button.active{color:var(--gold)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;color:var(--cream)}
.nav-toggle svg{width:28px;height:28px}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:160px 0 90px;position:relative;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.34}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(70% 60% at 50% 40%,transparent,var(--bg) 92%),
    linear-gradient(180deg,var(--bg) 0%,transparent 28%,transparent 62%,var(--bg) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:1000px;padding-inline:48px}
.hero h1{font-size:clamp(2.7rem,6.4vw,6rem);font-weight:500;color:var(--cream);margin-bottom:8px}
.hero .tagline{
  font-family:'Cormorant Garamond',serif;font-style:italic;
  font-size:clamp(1.3rem,2.2vw,1.9rem);color:var(--gold-2);margin:14px 0 0;
}
.hero-sub{
  margin:30px auto 38px;font-size:1.08rem;color:var(--cream-2);max-width:54ch;
}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-scroll{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:2;
  font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:10px;
}
.hero-scroll .ln{width:1px;height:42px;background:linear-gradient(var(--gold),transparent);animation:sd 2.2s var(--ease) infinite}
@keyframes sd{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ============================================================
   GEO ANSWER
   ============================================================ */
.geo-band{background:var(--bg-2);padding:36px 0;border-block:1px solid var(--line-soft)}
.geo-answer{
  font-size:.98rem;line-height:1.85;color:var(--cream-2);max-width:none;
  border-left:2px solid var(--gold);padding-left:26px;
}
.geo-answer strong{color:var(--cream);font-weight:600}

/* ============================================================
   A CLÍNICA
   ============================================================ */
.clinica{padding:130px 0}
.clinica-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:80px;align-items:center}
.clinica-visual{position:relative}
.clinica-photo{position:relative;overflow:hidden;aspect-ratio:4/4.7}
.clinica-photo img{width:100%;height:100%;object-fit:cover}
.clinica-frame{position:absolute;inset:18px;border:1px solid var(--gold);z-index:2;pointer-events:none}
.clinica-badge{
  position:absolute;right:-30px;top:46px;z-index:3;
  background:var(--bg);border:1px solid var(--line);padding:24px 20px;text-align:center;
}
.clinica-badge .num{font-family:'Cormorant Garamond',serif;font-size:3.4rem;color:var(--gold);line-height:.9}
.clinica-badge .lbl{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-top:8px}
.clinica-cap{
  position:absolute;left:0;right:60px;bottom:-1px;z-index:3;
  background:var(--bg);padding:16px 22px 0;
  font-family:'Cormorant Garamond',serif;font-style:italic;font-size:1.2rem;color:var(--cream);
}
.clinica h2{font-size:clamp(2.2rem,4vw,3.5rem);margin-bottom:24px}
.clinica-body p{margin-bottom:18px;color:var(--cream-2)}
.clinica-body p strong{color:var(--cream)}
.clinica-sign{font-family:'Cormorant Garamond',serif;font-style:italic;color:var(--gold-2);font-size:1.2rem;margin:6px 0 30px}
.meta-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
.meta-grid div{background:var(--bg);padding:22px 24px}
.meta-grid .k{font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:7px}
.meta-grid .v{font-family:'Cormorant Garamond',serif;font-size:1.45rem;color:var(--cream)}

/* ============================================================
   SECTION HEAD (centered)
   ============================================================ */
.sec-head{text-align:center;max-width:760px;margin:0 auto 64px}
.sec-head .h-section{margin-bottom:20px}

/* ============================================================
   TRATAMENTOS (especialidades grid)
   ============================================================ */
.tratamentos{padding:120px 0;background:var(--bg-2)}
.trat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft)}
.trat-card{
  background:var(--bg);padding:0;position:relative;overflow:hidden;
  transition:.4s var(--ease);min-height:340px;display:flex;flex-direction:column;justify-content:flex-end;
}
.trat-card-bg{position:absolute;inset:0;z-index:0}
.trat-card-bg img{width:100%;height:100%;object-fit:cover;opacity:.22;transition:.6s var(--ease)}
.trat-card::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(11,20,38,.4),var(--bg) 88%);
}
.trat-card:hover .trat-card-bg img{opacity:.42;transform:scale(1.06)}
.trat-card-in{position:relative;z-index:2;padding:34px 32px 36px}
.trat-num{font-family:'Cormorant Garamond',serif;font-size:1.5rem;color:var(--gold);display:block;margin-bottom:auto}
.trat-card h3{font-size:1.85rem;margin:80px 0 12px}
.trat-card p{font-size:.92rem;color:var(--cream-2)}
.trat-card .ar{
  margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:.68rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);
  transition:.3s;
}
.trat-card:hover .ar{gap:14px}

/* ============================================================
   TECNOLOGIA (editorial rows)
   ============================================================ */
.tech{padding:120px 0}
.tech-list{border-top:1px solid var(--line-soft)}
.tech-row{
  display:grid;grid-template-columns:80px 1fr 1.4fr 50px;gap:32px;align-items:center;
  padding:42px 0;border-bottom:1px solid var(--line-soft);transition:.4s var(--ease);
}
.tech-row:hover{padding-inline:18px;background:var(--bg-2)}
.tech-row .tn{font-size:.78rem;color:var(--gold);letter-spacing:.1em}
.tech-row h3{font-family:'Cormorant Garamond',serif;font-style:italic;font-size:1.95rem;color:var(--cream)}
.tech-row p{font-size:.94rem;color:var(--cream-2)}
.tech-row .ar{justify-self:end;color:var(--gold);font-size:1.4rem;transition:.3s}
.tech-row:hover .ar{transform:translateX(6px)}

/* ============================================================
   ECOSSISTEMA / OYSTER CLUB
   ============================================================ */
.eco{padding:120px 0;background:var(--bg-2)}
.eco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.eco-card{
  position:relative;border:1px solid var(--line);padding:54px 36px;
  text-align:center;overflow:hidden;transition:.4s var(--ease);min-height:330px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.eco-card-bg{position:absolute;inset:0;z-index:0}
.eco-card-bg img{width:100%;height:100%;object-fit:cover;opacity:.12;transition:.6s var(--ease)}
.eco-card:hover{border-color:var(--gold)}
.eco-card:hover .eco-card-bg img{opacity:.26}
.eco-card>*{position:relative;z-index:2}
.eco-card .ec-mark{font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin-bottom:16px}
.eco-card h3{font-size:2rem;margin-bottom:14px}
.eco-card p{font-size:.92rem;color:var(--cream-2);margin-bottom:22px}
.eco-card .lk{font-size:.68rem;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}

/* ============================================================
   MÉDICA / DRA
   ============================================================ */
.dra{padding:130px 0}
.dra-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.dra h2{font-size:clamp(2.6rem,5vw,4.4rem);margin-bottom:24px}
.dra-body p{margin-bottom:18px;color:var(--cream-2)}
.dra-body p strong{color:var(--cream)}
.dra-creds{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);margin-top:28px}
.dra-creds div{background:var(--bg);padding:18px 20px}
.dra-creds .k{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:6px}
.dra-creds .v{font-size:.92rem;color:var(--cream)}
.dra-visual{position:relative}
.dra-photo{position:relative;overflow:hidden;aspect-ratio:4/5}
.dra-photo img{width:100%;height:100%;object-fit:cover}
.dra-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(11,20,38,.94))}
.dra-quote{
  position:absolute;left:34px;right:34px;bottom:34px;z-index:2;
}
.dra-quote blockquote{font-family:'Cormorant Garamond',serif;font-size:1.6rem;font-style:italic;color:var(--cream);line-height:1.34}
.dra-quote cite{display:block;margin-top:14px;font-style:normal;font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}

/* ============================================================
   REVIEWS
   ============================================================ */
.reviews{padding:120px 0;background:var(--bg-2)}
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rev-card{border:1px solid var(--line-soft);padding:36px 32px;transition:.35s var(--ease)}
.rev-card:hover{border-color:var(--line);background:var(--bg)}
.rev-stars{color:var(--gold);letter-spacing:3px;font-size:.95rem;margin-bottom:18px}
.rev-card blockquote{font-family:'Cormorant Garamond',serif;font-size:1.3rem;font-style:italic;color:var(--cream);line-height:1.4;margin-bottom:20px}
.rev-card .who{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band{padding:140px 0;text-align:center;position:relative;overflow:hidden}
.cta-band-bg{position:absolute;inset:0;z-index:0}
.cta-band-bg img{width:100%;height:100%;object-fit:cover;opacity:.2}
.cta-band-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 70% at 50% 50%,transparent,var(--bg))}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{font-size:clamp(2.4rem,5vw,4.2rem);margin-bottom:20px}
.cta-band p{max-width:52ch;margin:0 auto 34px;color:var(--cream-2)}
.cta-band .hero-ctas{justify-content:center}

/* ============================================================
   CONTATO
   ============================================================ */
.contato{padding:120px 0}
.contato-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.contato h2{font-size:clamp(2.6rem,5vw,4.4rem);margin-bottom:22px}
.contato-info{margin-top:34px;border-top:1px solid var(--line-soft)}
.contato-info .row{
  display:flex;justify-content:space-between;gap:20px;padding:18px 0;
  border-bottom:1px solid var(--line-soft);
}
.contato-info .k{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.contato-info .v{font-size:.98rem;color:var(--cream);text-align:right}
.form{background:var(--bg-2);border:1px solid var(--line-soft);padding:44px}
.form .gold-cta{
  background:var(--gold);color:var(--bg);text-align:center;padding:22px;margin:-44px -44px 32px;
  font-family:'Cormorant Garamond',serif;font-size:1.5rem;font-style:italic;
}
.field{display:block;margin-bottom:18px}
.field span{display:block;font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;background:transparent;border:none;border-bottom:1px solid var(--line-soft);
  padding:10px 2px;color:var(--cream);font-size:.96rem;transition:.25s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold)}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field select option{background:var(--bg-2)}
.form-ok{display:none;color:var(--gold-2);font-size:.86rem;text-align:center;margin-top:14px}

/* ============================================================
   FAQ
   ============================================================ */
.faq{padding:120px 0;background:var(--bg-2)}
.faq-list{max-width:880px;margin:0 auto;border-top:1px solid var(--line-soft)}
.faq details{border-bottom:1px solid var(--line-soft)}
.faq summary{
  list-style:none;cursor:pointer;padding:26px 4px;display:flex;justify-content:space-between;
  align-items:center;gap:20px;font-family:'Cormorant Garamond',serif;font-size:1.5rem;color:var(--cream);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .pm{color:var(--gold);font-size:1.6rem;transition:.3s;flex-shrink:0;line-height:1}
.faq details[open] summary .pm{transform:rotate(45deg)}
.faq details p{padding:0 4px 28px;color:var(--cream-2);font-size:.97rem;max-width:74ch}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:var(--panel);padding:90px 0 0;border-top:1px solid var(--line-soft)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:48px;padding-bottom:60px}
.footer-logo{height:54px;width:auto;margin-bottom:20px}
.footer-tag{font-family:'Cormorant Garamond',serif;font-style:italic;font-size:1.4rem;color:var(--gold-2);margin-bottom:14px}
.footer-about{font-size:.9rem;color:var(--cream-2);max-width:36ch;line-height:1.75}
.footer h4{font-size:.68rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin-bottom:20px;font-family:'Inter',sans-serif;font-weight:600}
.footer-col a,.footer-col p{display:block;font-size:.92rem;color:var(--cream-2);margin-bottom:13px;transition:.2s}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:26px 0;display:flex;
  justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:.74rem;letter-spacing:.06em;color:var(--muted);
}
.footer-bottom .ne{display:flex;align-items:center;gap:8px}

/* ============================================================
   FLOAT / SWITCHER
   ============================================================ */
.wa-float{
  position:fixed;bottom:24px;right:24px;z-index:80;width:56px;height:56px;border-radius:50%;
  background:#25d366;display:grid;place-items:center;box-shadow:0 14px 30px -8px rgba(37,211,102,.6);
  transition:.25s;
}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px}
.switch-pill{
  position:fixed;bottom:24px;left:24px;z-index:80;background:var(--bg-2);
  border:1px solid var(--gold);padding:12px 15px;max-width:230px;
  box-shadow:0 20px 44px -18px rgba(0,0,0,.7);
}
.switch-pill .mono{font-size:.58rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.switch-pill strong{display:block;font-size:.82rem;color:var(--cream);margin:3px 0 8px;font-weight:600}
.switch-pill .opts{display:flex;gap:6px;flex-wrap:wrap}
.switch-pill .opts a{
  font-size:.64rem;font-weight:700;padding:4px 8px;color:var(--cream-2);
  border:1px solid var(--line-soft);transition:.2s;
}
.switch-pill .opts a:hover{border-color:var(--gold);color:var(--gold)}
.switch-pill .opts a.cur{background:var(--gold);color:var(--bg);border-color:var(--gold)}

/* ============================================================
   REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(30px);transition:.9s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .hero-scroll .ln{animation:none}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .container{padding-inline:32px}
  .trat-grid,.eco-grid,.rev-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .clinica-grid,.dra-grid,.contato-grid{grid-template-columns:1fr;gap:54px}
  .dra-visual{order:-1}
  .tech-row{grid-template-columns:54px 1fr;gap:8px 20px}
  .tech-row p{grid-column:2}
  .tech-row .ar{display:none}
}
@media (max-width:760px){
  .container{padding-inline:22px}
  .nav-links,.lang{display:none}
  .nav-toggle{display:block}
  .nav.open{background:rgba(11,20,38,.98);backdrop-filter:blur(12px)}
  .nav.open .nav-links{
    display:flex;flex-direction:column;gap:4px;position:absolute;top:100%;left:0;right:0;
    background:var(--bg);padding:18px 22px;border-bottom:1px solid var(--line-soft);
  }
  .nav.open .nav-links a{padding:12px 0}
  .trat-grid,.eco-grid,.rev-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .meta-grid,.dra-creds{grid-template-columns:1fr}
  .clinica-badge{right:14px;top:14px}
  .hero-inner{padding-inline:22px}
  .form .gold-cta{margin:-44px -44px 28px}
  .switch-pill{display:none}
}