/* ============================================================
   Centro Oftalmológico de Divinópolis · base.css (FUNDAÇÃO COMPARTILHADA)
   CSS usado em TODAS as páginas. Extraído de _original/index_1.html
   SEM alterações visuais. Única regra nova: link ativo do menu (.active).
   NÃO adicione aqui CSS específico de seção — isso vai em css/<pagina>.css.
   ============================================================ */

/* ===== TOKENS ===== */
:root{
  --ink:#0a1d20; --ink-2:#0e272b; --paper:#faf6ed; --cream:#f2ebdc;
  --accent:#c8924a; --accent-deep:#a8742f; --teal:#2f6f6b; --muted:#5c6b67;
  --line:rgba(10,29,32,.12);
  --ease:cubic-bezier(.22,1,.36,1);
  --shadow:0 30px 60px -30px rgba(10,29,32,.45);
}

/* ===== RESET ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Outfit',sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:'Fraunces',serif;font-weight:400;line-height:1.04;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:var(--accent);color:var(--paper)}

.grain{position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ===== SPLASH / LOADER ÍRIS =====
   Tela de entrada. Roteiro (~3,2s na 1ª visita da sessão):
     0,35s  pálpebra abre  — .iris scaleY(.04)→1, desfoque 12px→0
     0,50s  diafragma gira e assenta (lâminas da íris)
     0,60s  pupila dilata e foca
     1,50s  assinatura da clínica surge; risco dourado preenche (progresso)
     3,20s  .done — a íris se fecha em círculo e revela o site
   Navegações seguintes usam .quick (estado final imediato, 400ms).
   Só transform/opacity/filter — sem reflow, leve no mobile.
   A marcação continua a mesma nas 12 páginas: tudo aqui é pseudo-elemento. */
.loader{position:fixed;inset:0;z-index:100;background:var(--ink);display:grid;place-items:center;
  transition:clip-path 1s var(--ease),opacity .5s ease;clip-path:circle(150% at 50% 50%)}
.loader.done{clip-path:circle(0% at 50% 50%);pointer-events:none}

/* halo dourado que "acende" atrás da íris */
.loader::before{content:"";position:absolute;top:50%;left:50%;
  width:min(78vmin,560px);aspect-ratio:1;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(200,146,74,.18),transparent 62%);
  transform:translate(-50%,-50%) scale(.55);opacity:0;
  animation:splashGlow 2.2s var(--ease) .3s forwards}

/* assinatura + risco de progresso (o risco é o indicador de carregamento) */
.loader::after{content:"Centro Oftalmológico de Divinópolis";position:absolute;left:50%;top:calc(50% + min(24vmin,150px));
  font-family:'Fraunces',serif;font-size:clamp(.95rem,2.6vw,1.4rem);color:var(--paper);
  padding-bottom:.65rem;white-space:nowrap;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-position:50% 100%;background-size:0% 1.5px;
  transform:translate(-50%,12px);opacity:0;
  animation:splashWord .8s var(--ease) 1.5s forwards,
            splashProgress 1.5s var(--ease) 1.65s forwards}

.iris{width:min(46vmin,260px);height:auto;
  transform:scaleY(.04);filter:blur(12px);opacity:0;
  animation:splashOpen 1.5s var(--ease) .35s forwards}
/* lâminas do diafragma: giram até assentar (2º <g> do SVG) */
.iris>g:nth-of-type(2){transform-box:fill-box;transform-origin:center;
  opacity:0;animation:splashAperture 1.7s var(--ease) .5s forwards}
.iris .pupil{transform-box:fill-box;transform-origin:center;
  animation:pupilDilate 1.8s var(--ease) .6s forwards}

@keyframes splashGlow{to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
@keyframes splashOpen{
  0%{transform:scaleY(.04) scale(1.05);filter:blur(12px);opacity:0}
  30%{opacity:1}
  60%{transform:scaleY(1) scale(1.05);filter:blur(5px)}
  100%{transform:scaleY(1) scale(1);filter:blur(0);opacity:1}}
@keyframes splashAperture{
  0%{transform:rotate(-30deg);opacity:0}
  45%{opacity:.5}
  100%{transform:rotate(0);opacity:.5}}
@keyframes splashWord{to{opacity:1;transform:translate(-50%,0)}}
@keyframes splashProgress{to{background-size:100% 1.5px}}
@keyframes pupilDilate{0%{transform:scale(1)}45%{transform:scale(.35)}100%{transform:scale(.6)}}

/* Navegação interna na mesma sessão: sem reencenar a abertura */
.loader.quick::before{animation:none;opacity:1;transform:translate(-50%,-50%) scale(1)}
.loader.quick::after{animation:none;opacity:1;transform:translate(-50%,0);background-size:100% 1.5px}
.loader.quick .iris{animation:none;transform:none;filter:none;opacity:1}
.loader.quick .iris>g:nth-of-type(2){animation:none;opacity:.5}
.loader.quick .iris .pupil{animation:none;transform:scale(.6)}

/* ===== NAV ===== */
header{position:fixed;top:0;left:0;right:0;z-index:50;transition:all .4s var(--ease)}
.nav{max-width:1300px;margin:0 auto;padding:1.5rem 2rem;display:flex;align-items:center;justify-content:space-between}
header.scrolled{background:rgba(250,246,237,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
header.scrolled .nav{padding:.9rem 2rem}
.brand{display:flex;align-items:center;gap:.7rem;font-family:'Fraunces',serif;font-size:1.35rem;color:var(--ink)}
.brand-name{font-size:.95rem;line-height:1.15;letter-spacing:-.01em;max-width:14ch}
/* logo real (olho+espiral dourado, fundo transparente) — funciona em fundo claro e escuro */
.brand-logo{height:48px;width:auto;display:block;flex:none}
header.scrolled .brand-logo{height:42px;transition:height .4s var(--ease)}
.brand .dot{color:var(--accent)}
.nav-links{display:flex;gap:2.2rem;align-items:center}
.nav-links a{font-size:.92rem;opacity:.8;position:relative;transition:opacity .3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:1.5px;background:var(--accent);transition:width .35s var(--ease)}
.nav-links a:hover{opacity:1}.nav-links a:hover::after{width:100%}
/* link da página atual (adicione class="active" no <a> correspondente) */
.nav-links a.active{opacity:1}.nav-links a.active::after{width:100%}
.nav-cta{padding:.55rem 1.3rem;border:1px solid currentColor;border-radius:100px;font-size:.88rem;transition:transform .25s var(--ease),background .3s,color .3s}
.nav-cta:hover{background:var(--ink);color:var(--paper)}.nav-cta:active{transform:scale(.97)}
.burger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:0}
.burger span{width:26px;height:2px;background:var(--ink);transition:.3s}

/* ===== REVEAL PALAVRA POR PALAVRA ===== */
.words .w{display:inline-block;overflow:hidden;vertical-align:top}
.words .wi{display:inline-block;transform:translateY(110%);transition:transform .9s var(--ease)}
.words.in .wi{transform:translateY(0)}

/* ===== BOTÕES ===== */
.btn{display:inline-flex;align-items:center;gap:.7rem;padding:1rem 1.9rem;border-radius:100px;font-size:.98rem;font-weight:500;cursor:pointer;border:1px solid transparent;transition:transform .25s var(--ease),box-shadow .3s,background .3s,border-color .3s}
.btn-primary{background:var(--accent);color:var(--ink)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(200,146,74,.6)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{border-color:rgba(242,235,220,.3);color:var(--paper)}
.btn-ghost:hover{border-color:var(--paper);transform:translateY(-2px)}

/* ===== LAYOUT / SEÇÕES COMPARTILHADAS ===== */
.wrap{max-width:1300px;margin:0 auto;padding:0 2rem}
.sec-pad{padding:clamp(5rem,12vh,9rem) 0}
.sec-tag{font-size:.78rem;letter-spacing:.26em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:1rem;display:block}
.sec-title{font-size:clamp(2rem,5vw,3.4rem);margin-bottom:1.2rem}
.sec-title em{font-style:normal;color:var(--ink)}
.sec-sub{color:var(--muted);font-size:1.08rem;max-width:52ch}
.obs{opacity:0;transform:translateY(40px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.obs.in{opacity:1;transform:none}

/* ===== FOOTER ===== */
footer{background:var(--ink);color:rgba(242,235,220,.7);padding:4rem 0 2.5rem}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:2rem;align-items:flex-start}
footer .brand{color:var(--paper);mix-blend-mode:normal}
.foot-grid p{max-width:30ch;font-size:.92rem;margin-top:1rem}
.foot-links{display:flex;gap:2.5rem;flex-wrap:wrap}
.foot-col h4{font-family:'Outfit';font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem;font-weight:600}
.foot-col a{display:block;font-size:.92rem;padding:.25rem 0;transition:color .3s}.foot-col a:hover{color:var(--paper)}
.foot-bottom{border-top:1px solid rgba(242,235,220,.12);margin-top:3rem;padding-top:1.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.82rem;color:rgba(242,235,220,.45)}

/* ===== WHATSAPP FLUTUANTE ===== */
.wa-float{position:fixed;bottom:2rem;right:2rem;z-index:70;display:flex;align-items:center;background:#25D366;color:#fff;border-radius:100px;height:60px;width:60px;overflow:hidden;box-shadow:0 14px 34px -8px rgba(37,211,102,.55);transition:width .45s var(--ease),transform .25s var(--ease)}
.wa-float svg{width:30px;height:30px;flex:none;margin:0 15px}
.wa-float .wa-label{white-space:nowrap;font-weight:500;font-size:.95rem;padding-right:1.4rem;opacity:0;transition:opacity .3s}
.wa-float:hover{width:230px}.wa-float:hover .wa-label{opacity:1}.wa-float:active{transform:scale(.95)}
.wa-float::before{content:"";position:absolute;inset:0;border-radius:100px;box-shadow:0 0 0 0 rgba(37,211,102,.5);animation:waPulse 2.6s infinite}
@keyframes waPulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 18px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}

/* ===== RESPONSIVO (compartilhado) ===== */
@media(max-width:680px){
  .nav-links{position:fixed;inset:0;background:var(--paper);flex-direction:column;justify-content:center;transform:translateX(100%);transition:transform .45s var(--ease);z-index:55}
  .nav-links.open{transform:translateX(0)}
  .burger{display:flex;z-index:56}
  .wrap{padding:0 1.4rem}.wa-float{bottom:1.2rem;right:1.2rem}
  /* mobile: só o símbolo dourado (a marca fala por si; o nome quebraria a linha) */
  .brand-name{display:none}
  .brand-logo{height:52px}
}

/* Movimento reduzido (compartilhado). Cada página adiciona no seu CSS
   as regras específicas de suas seções, se houver. */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .obs,.words .wi{opacity:1;transform:none}
  /* Splash: as animações acima estão desligadas, então força o estado
     final — sem isso a íris ficaria invisível (nasce em opacity:0). */
  .loader::before{opacity:1;transform:translate(-50%,-50%) scale(1)}
  .loader::after{opacity:1;transform:translate(-50%,0);background-size:100% 1.5px}
  .iris{opacity:1;transform:none;filter:none}
  .iris>g:nth-of-type(2){opacity:.5}
  .iris .pupil{transform:scale(.6)}
}