/* ===========================================================
   Dra. Letícia Rivelli — Odontologia de Alta Estética
   Paleta: marrom café e bege/areia, do mais claro ao mais escuro
   =========================================================== */

:root{
  /* Paleta — somente marrom e bege */
  --brown-darkest: #2c1f17;
  --brown-dark:    #4a342a;
  --brown:         #6b4a36;
  --brown-light:   #9c7b5e;
  --sand:          #efe2d1;
  --sand-light:    #f8f1e6;
  --sand-soft:     #f3e7d8;
  --offwhite:      #fdfaf5;
  /* dourado champagne — versão clara do --brown-light, para fundos escuros */
  --champagne:     #d8b58c;

  /* Tipografia */
  --font-serif: 'Playfair Display', 'Cormorant Garamond', serif;
  --font-sans:  'Lato', sans-serif;

  /* Outros */
  --header-h: 62px;
  --radius: 2px;
  --shadow-soft: 0 20px 50px -20px rgba(44, 31, 23, .35);
  --transition-slow: .8s cubic-bezier(.22,.61,.36,1);
}

*{ margin:0; padding:0; box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  font-family: var(--font-sans);
  color: var(--brown-dark);
  background: var(--sand-light);
  line-height: 1.7;
  overflow-x: hidden;
  font-weight: 300;
}

/* height:auto e obrigatorio junto dos atributos width/height nas <img>:
   sem ele o atributo height vira uma dica de apresentacao em px e
   sobrepoe qualquer aspect-ratio definido aqui. */
img{ display:block; max-width:100%; height:auto; }

a{ color:inherit; text-decoration:none; }

.container{
  width:100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

h1,h2,h3{
  font-family: var(--font-serif);
  color: var(--brown-darkest);
  font-weight: 600;
  letter-spacing: .01em;
}

h2{ font-size: clamp(1.8rem, 3.2vw, 2.6rem); margin-bottom: 1.1rem; }
h3{ font-size: 1.25rem; margin-bottom: .5rem; font-weight: 500; }

.section{ position: relative; padding: 110px 0; }
.section-eyebrow{
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: .22em;
  font-size: .76rem;
  color: var(--brown);
  font-weight: 700;
  margin-bottom: .9rem;
}
.center{ text-align:center; }

/* ===================== TEXTURA DE GRÃO ===================== */
.grain-overlay{
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ===================== BOTÕES ===================== */
.btn{
  display: inline-block;
  font-family: var(--font-sans);
  font-size: .92rem;
  letter-spacing: .04em;
  padding: 14px 32px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all .35s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--brown);
  color: var(--sand-light);
  box-shadow: 0 8px 24px -8px rgba(44,31,23,.5);
}
.btn-primary:hover{
  background: var(--brown-light);
  color: var(--brown-darkest);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -10px rgba(156,123,94,.55);
}
.btn-outline{
  border-color: var(--brown-dark);
  color: var(--brown-darkest);
  background: transparent;
}
.btn-outline:hover{
  border-color: var(--brown);
  background: var(--brown);
  color: var(--offwhite);
  transform: translateY(-2px);
}

/* ===================== HEADER ===================== */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(253,250,245,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(74,52,42,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: var(--header-h);
  gap: 24px;
}
.brand{
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--brown-darkest);
  font-weight: 600;
  flex-shrink: 0;
}
.brand span{ color: var(--brown-light); font-style: italic; margin-left: .3em; }

.nav-links{
  display:flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
  font-size: .9rem;
  letter-spacing: .02em;
}
.nav-links a{
  position: relative;
  padding: 6px 2px;
  color: var(--brown);
  transition: color .3s ease;
}
.nav-links a::after{
  content:'';
  position:absolute;
  left:0; right:100%; bottom:0;
  height:1px;
  background: var(--brown);
  transition: right .35s ease;
}
.nav-links a:hover{ color: var(--brown-darkest); }
.nav-links a:hover::after{ right:0; }

.btn-header-cta{
  padding: 11px 24px;
  font-size: .82rem;
  flex-shrink: 0;
}

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width: 32px; height: 32px;
  background: none; border:none; cursor:pointer;
}
.nav-toggle span{
  display:block; height:1px; width:100%;
  background: var(--brown-darkest);
  transition: all .3s ease;
}

/* ===================== HERO ===================== */
.hero{
  position: relative;
  height: 100vh;
  min-height: 620px;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  color: var(--offwhite);
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.hero-slide{
  position:absolute; inset:0;
  background-size: cover;
  /* foto horizontal com a Dra. à direita — ancorar à direita e deixar a
     parede livre à esquerda para o texto. Ancorar no TOPO também: a foto
     tem pouquíssimo espaço acima da cabeça, então qualquer corte vertical
     precisa sair por baixo. */
  background-position: right top;
  opacity: 0;
  transform: scale(1);
  transform-origin: right top;
  transition: opacity 2.2s ease;
  animation: kenburns 24s ease-in-out infinite;
}
.hero-slide.is-active{ opacity: 1; }

/* origem no topo/direita: o zoom cresce para baixo e nunca invade a cabeça */
@keyframes kenburns{
  0%   { transform: scale(1); }
  50%  { transform: scale(1.045); }
  100% { transform: scale(1); }
}

.hero-overlay{
  position:absolute; inset:0; z-index:1;
  /* véu mais forte à esquerda (área do texto) e quase limpo sobre o rosto */
  background:
    linear-gradient(90deg, rgba(44,31,23,.82) 0%, rgba(44,31,23,.66) 34%, rgba(44,31,23,.28) 62%, rgba(44,31,23,.12) 100%),
    linear-gradient(180deg, rgba(44,31,23,.34) 0%, rgba(44,31,23,0) 35%, rgba(44,31,23,.42) 100%);
}

.hero-content{
  position:relative; z-index:2;
  text-align:left;
}
.hero-content > *{ max-width: 620px; }
.hero-eyebrow{
  text-transform: uppercase;
  letter-spacing: .28em;
  font-size: .78rem;
  color: var(--champagne);
  margin-bottom: 1.6rem;
  font-weight: 600;
}
.hero h1{
  color: var(--offwhite);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 500;
  line-height: 1.08;
  margin-bottom: 1.5rem;
}
/* palavra de destaque: itálico + dourado, mesma assinatura do logo */
.hero h1 em{
  font-style: italic;
  font-weight: 500;
  color: var(--champagne);
}
.hero-subtitle{
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(253,250,245,.86);
  max-width: 480px;
  margin: 0 0 2.6rem;
  font-weight: 300;
}
.hero-subtitle strong{ font-weight: 600; color: var(--offwhite); }
.hero-actions{ display:flex; gap: 18px; justify-content:flex-start; flex-wrap:wrap; }

/* CTA principal: ícone de agenda + rótulo em caixa alta + seta */
.btn-cta{
  display:inline-flex;
  align-items:center;
  gap: 14px;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .8rem;
  font-weight: 500;
  padding: 17px 30px;
}
.btn-cta .btn-icon{ width: 17px; height: 17px; flex-shrink:0; }
.btn-cta .btn-arrow{
  font-size: 1rem;
  line-height: 1;
  transition: transform .35s ease;
}
.btn-cta:hover .btn-arrow{ transform: translateX(5px); }

/* ===================== SCROLL REVEAL ===================== */
.reveal{
  opacity:0;
  transform: translateY(32px);
  transition: opacity 1s ease, transform 1s ease;
}
.reveal.is-visible{ opacity:1; transform: translateY(0); }

/* O hero já está na viewport ao carregar, então anima na entrada por CSS puro.
   Depender do IntersectionObserver aqui deixaria o CTA invisível se ele não
   disparasse — sem segundo botão, o hero ficaria sem nenhuma chamada. */
.hero .reveal{ animation: heroIn 1s cubic-bezier(.22,.61,.36,1) forwards; }
.hero .reveal:nth-child(1){ animation-delay: .10s; }
.hero .reveal:nth-child(2){ animation-delay: .18s; }
.hero .reveal:nth-child(3){ animation-delay: .26s; }
.hero .reveal:nth-child(4){ animation-delay: .34s; }
@keyframes heroIn{ to{ opacity:1; transform: translateY(0); } }

/* ===================== SOBRE ===================== */
.section-sobre{ background: var(--sand-light); }
.sobre-grid{
  display:grid;
  grid-template-columns: minmax(0,.72fr) minmax(0,1.28fr);
  gap: 64px;
  align-items:center;
}
.sobre-image{ position:relative; max-width: 360px; }
.sobre-image img{
  width:100%; height:auto; aspect-ratio: 4/5; object-fit:cover;
  object-position: center 15%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}
.sobre-image-frame{
  position:absolute; top:18px; left:18px; right:-18px; bottom:-18px;
  border: 1px solid var(--brown-light);
  z-index:-1;
}
.sobre-bio{ margin-bottom: 1.6rem; color: var(--brown); max-width: 56ch; }
.sobre-credenciais{ list-style:none; margin-bottom: 1.6rem; }
.sobre-credenciais li{
  padding: 8px 0;
  border-bottom: 1px solid rgba(74,52,42,.12);
  color: var(--brown);
  font-size: .96rem;
}
.sobre-credenciais li span{ color: var(--brown-light); font-style: italic; }
.cro-tag{
  display:inline-block;
  font-size: .82rem;
  letter-spacing:.05em;
  color: var(--brown-darkest);
  border: 1px solid var(--brown);
  padding: 8px 18px;
  border-radius: 20px;
}
.cro-tag span{ font-weight:700; }

/* ===================== TRATAMENTOS ===================== */
.section-tratamentos{ background: var(--sand); }

.trat-split{
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 0 3.5rem;
  margin-top: 2.5rem;
  align-items: start;
  max-width: 1056px;     /* 1000 de conteudo + 2x28 de respiro lateral */
  margin-left: auto;
  margin-right: auto;
  /* este bloco fica fora do .container, entao precisa do proprio padding:
     sem ele, no celular a lista encostava nas bordas e a seta era cortada */
  padding-left: 28px;
  padding-right: 28px;
}

/* ---- Lista ---- */
.trat-list{
  list-style: none;
  margin: 0; padding: 0;
}

.trat-item{
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(74,52,42,.13);
  cursor: pointer;
  position: relative;
  transition: padding-left .3s ease;
}
.trat-list li:first-child{ border-top: 1px solid rgba(74,52,42,.13); }

/* barra lateral activa */
.trat-item::before{
  content: '';
  position: absolute;
  left: -1px; top: 0; bottom: 0;
  width: 2px;
  background: var(--brown);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .35s ease;
}
.trat-item.is-active::before{ transform: scaleY(1); }

.trat-num{
  font-family: var(--font-serif);
  font-size: .8rem;
  color: var(--brown-light);
  min-width: 1.8rem;
  transition: color .3s;
}

.trat-name{
  font-family: var(--font-serif);
  font-size: 1.03rem;
  color: var(--brown-dark);
  flex: 1;
  transition: color .3s, font-style .3s;
  line-height: 1.3;
}

.trat-arrow{
  font-size: 1rem;
  color: var(--brown);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity .3s, transform .3s;
  flex-shrink: 0;
}

.trat-item.is-active .trat-name{ font-style: italic; color: var(--brown-darkest); }
.trat-item.is-active .trat-num { color: var(--brown); }
.trat-item.is-active .trat-arrow,
.trat-item:hover .trat-arrow   { opacity: 1; transform: translateX(0); }
.trat-item:hover .trat-name    { color: var(--brown-darkest); }
.trat-item.is-active           { padding-left: .8rem; }

/* ---- Painel da foto ---- */
.trat-panel{
  position: sticky;
  top: 100px;          /* fica abaixo do header ao rolar */
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--sand-soft);
}

.trat-panel-slide{
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .55s ease;
  pointer-events: none;
}
.trat-panel-slide.is-active{
  position: relative;
  opacity: 1;
  pointer-events: auto;
}

.trat-panel-slide img{
  width: 100%;
  height: auto;
  display: block;
  max-height: 50vh;
  object-fit: contain;
  background: var(--sand-soft);
}

.trat-panel-caption{
  padding: 1rem 1.2rem 1.1rem;
  background: var(--offwhite);
  border-top: 1px solid rgba(74,52,42,.1);
}
.trat-panel-caption h3{
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--brown-darkest);
  margin: 0 0 .3rem;
}
.trat-panel-caption p{
  font-family: var(--font-sans);
  font-size: .83rem;
  line-height: 1.65;
  color: var(--brown);
  margin: 0;
}

.tratamentos-nota{
  margin-top: 38px;
  text-align:center;
  font-size: .8rem;
  color: var(--brown-light);
  font-style: italic;
}

/* ===================== DIFERENCIAIS ===================== */
.section-diferenciais{ background: var(--brown-darkest); color: var(--sand-light); }
.section-diferenciais h2{ color: var(--offwhite); }
.diferenciais-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 36px;
  margin-top: 56px;
  text-align:center;
}
.diferencial-icon{ display:block; color: var(--sand); font-size: 1.6rem; margin-bottom: 16px; }
.diferencial-item h3{ color: var(--offwhite); }
.diferencial-item p{ color: rgba(253,250,245,.72); font-size: .92rem; }

/* ===================== FAQ ===================== */
.section-faq{ background: var(--sand); }
.faq-list{ max-width: 760px; margin: 50px auto 0; }
.faq-item{ border-bottom: 1px solid rgba(74,52,42,.15); }
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:none; border:none; cursor:pointer;
  text-align:left;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  color: var(--brown-darkest);
  padding: 22px 4px;
}
.faq-toggle{ color: var(--brown); font-size: 1.3rem; transition: transform .35s ease; flex-shrink:0; margin-left: 16px; }
.faq-question[aria-expanded="true"] .faq-toggle{ transform: rotate(45deg); }
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition: max-height .4s ease;
}
.faq-answer p{ padding: 0 4px 22px; color: var(--brown); font-size: .95rem; }

/* ===================== LOCALIZAÇÃO ===================== */
.section-localizacao{ background: var(--sand-light); }
.localizacao-grid{
  display:grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 60px;
  align-items:center;
}
.localizacao-endereco{ margin: 1rem 0 1.6rem; color: var(--brown); }
.map-placeholder{
  height: 320px;
  border-radius: var(--radius);
  border: 1px dashed var(--brown-light);
  background: var(--sand);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap: 8px;
  color: var(--brown);
  text-align:center;
  padding: 20px;
}
.map-placeholder small{ color: var(--brown-light); }

/* ===================== CTA FINAL ===================== */
.section-cta-final{
  background: linear-gradient(180deg, var(--brown-darkest), var(--brown-dark));
  text-align:center;
}
.cta-final-inner h2{ color: var(--offwhite); }
.cta-final-inner p{ color: rgba(253,250,245,.78); max-width: 520px; margin: 0 auto 2.2rem; }
.cta-final-inner .hero-actions{ justify-content:center; }

/* ===================== FOOTER ===================== */
.site-footer{ background: var(--brown-darkest); color: rgba(253,250,245,.7); padding: 60px 0 0; }
.footer-inner{
  display:grid;
  grid-template-columns: 1.2fr 1fr .8fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(253,250,245,.12);
}
.footer-brand .brand{ color: var(--offwhite); }
.footer-cro{ margin-top: 10px; font-size: .82rem; }
.footer-contact p{ margin-bottom: 6px; font-size: .9rem; }
.footer-social{ display:flex; flex-direction:column; gap: 12px; align-self:start; }
.footer-social a{ font-size: .9rem; transition: color .3s ease; }
.footer-social a:hover{ color: var(--sand); }
.social-link{
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.social-link svg{ flex-shrink: 0; }
.footer-bottom{ padding: 22px 0; text-align:center; font-size: .78rem; }

/* ===================== WHATSAPP FLUTUANTE ===================== */
.whatsapp-float{
  position: fixed;
  bottom: 28px; right: 28px;
  z-index: 900;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 10px 30px -8px rgba(0,0,0,.4);
  animation: floatPulse 2.6s ease-in-out infinite;
}
@keyframes floatPulse{
  0%,100%{ box-shadow: 0 10px 30px -8px rgba(0,0,0,.4), 0 0 0 0 rgba(37,211,102,.5); }
  50%{ box-shadow: 0 10px 30px -8px rgba(0,0,0,.4), 0 0 0 10px rgba(37,211,102,0); }
}

/* ===================== RESPONSIVO ===================== */
@media (max-width: 900px){
  .nav-links{
    display:flex;
    position:fixed;
    top: var(--header-h); left:0; right:0;
    flex-direction:column;
    align-items:center;
    gap: 22px;
    background: var(--offwhite);
    padding: 30px 0;
    transform: translateY(-12px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transition: opacity .3s ease, transform .3s ease;
    border-bottom: 1px solid rgba(74,52,42,.1);
    box-shadow: 0 16px 30px -16px rgba(44,31,23,.25);
  }
  .nav-links.is-open{
    opacity:1; transform:translateY(0); visibility:visible; pointer-events:auto;
  }
  .nav-toggle{ display:flex; }
  .nav-toggle.is-active span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
  .nav-toggle.is-active span:nth-child(2){ opacity:0; }
  .nav-toggle.is-active span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }
  .btn-header-cta{ display:none; }

  .sobre-grid, .localizacao-grid{ grid-template-columns: 1fr; gap: 44px; }
  /* empilhado: o retrato centraliza e encolhe, para nao dominar a secao */
  .sobre-image{ max-width: 320px; margin: 0 auto; }
  .sobre-text{ text-align:center; }
  .sobre-bio{ margin-left:auto; margin-right:auto; max-width: 46ch; }

  .trat-split{ grid-template-columns: 1fr; gap: 2.5rem 0; }
  .trat-panel{ position: static; }
  .diferenciais-grid{ grid-template-columns: repeat(2, 1fr); }

  .footer-inner{ grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 900px){
  /* no mobile a foto é horizontal: a Dra. fica no topo e o texto desce para
     a base, sobre o véu mais fechado. O zoom extra na foto empurra a cabeça
     para baixo do header fixo, que senão passa por cima dela. */
  .hero{ align-items: flex-end; padding-bottom: 56px; }
  .hero-slide{
    background-size: auto 132%;
    background-position: 68% top;
  }
  .hero-overlay{
    background:
      linear-gradient(180deg, rgba(44,31,23,.42) 0%, rgba(44,31,23,.3) 28%, rgba(44,31,23,.8) 62%, rgba(44,31,23,.92) 100%);
  }
  .hero-content > *{ max-width: 100%; }
  .hero h1{ font-size: clamp(2.3rem, 9vw, 3rem); }
}

@media (max-width: 600px){
  .section{ padding: 80px 0; }
  .diferenciais-grid{ grid-template-columns: 1fr; }
  .sobre-image{ max-width: 260px; }

  .hero-actions{ flex-direction:column; align-items:center; }
  .hero .hero-actions{ align-items:flex-start; }
  .hero-actions .btn{ width:100%; max-width: 320px; text-align:center; }
  .hero-actions .btn-cta{ justify-content:center; }
  .whatsapp-float{ width: 52px; height:52px; bottom: 20px; right: 20px; }
}