/* Centro Dental Cibao — sitio web · sistema de diseño
   Colores tomados del logo: verde bosque #3c5448 · verde medio #607854 · salvia #9ca884 */
:root{
  --marca:#607854; --marca-d:#3c5448; --marca-l:#eef1ea;
  --salvia:#9ca884; --wa:#25D366;
  --ink:#26302a; --muted:#6b7568; --line:#e6e9e1; --bg:#ffffff; --bg-alt:#f7f8f4;
  --radius:14px; --sombra:0 2px 8px rgba(0,0,0,.05), 0 12px 32px rgba(0,0,0,.06);
  --max:1140px;
  --font:'Raleway',-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--marca);text-decoration:none}
h1,h2{font-family:'Fraunces',Georgia,serif;font-optical-sizing:auto;font-weight:600;line-height:1.08;letter-spacing:-.015em;color:var(--marca-d);margin:0 0 .5em}
h3{font-weight:800;line-height:1.15;color:var(--marca-d);margin:0 0 .5em}
h1{font-size:clamp(2.4rem,6vw,4.1rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
.centro{text-align:center}
.muted{color:var(--muted)}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:100px;font-weight:700;font-size:1rem;border:2px solid transparent;transition:.18s;cursor:pointer;text-align:center}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--salvia);outline-offset:2px}
.chip{transition:.15s}
.chip:hover{border-color:var(--marca);transform:translateY(-1px)}
.btn-wa{background:var(--wa);color:#fff!important;box-shadow:0 6px 20px rgba(37,211,102,.32)}
.btn-wa:hover{background:#1fb855;transform:translateY(-2px)}
.btn-teal{background:var(--marca);color:#fff!important}
.btn-teal:hover{background:var(--marca-d);transform:translateY(-2px)}
.btn-linea{border-color:var(--marca);color:var(--marca)!important;background:transparent}
.btn-linea:hover{background:var(--marca);color:#fff!important}
.btn-claro{background:rgba(255,255,255,.15);color:#fff!important;border-color:rgba(255,255,255,.5)}
.btn-claro:hover{background:#fff;color:var(--marca-d)!important}

/* ---------- Encabezado ---------- */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:12px;padding-bottom:12px}
.logo{display:flex;align-items:center;gap:11px}
.logo img{height:46px;width:auto}
.logo span{font-weight:800;font-size:1.06rem;color:var(--marca-d);letter-spacing:-.01em;line-height:1.1}
@media (max-width:420px){.logo span{display:none}}
.nav{display:flex;align-items:center;gap:30px}
.nav a{color:var(--marca-d);font-weight:600;font-size:.95rem;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.on{border-bottom-color:var(--salvia);color:var(--marca)}
.nav .btn{padding:10px 20px;font-size:.9rem}
.menu-btn{display:none;background:none;border:none;padding:8px;cursor:pointer}
.menu-btn span{display:block;width:24px;height:2px;background:var(--marca-d);margin:5px 0;transition:.2s}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:min(86vh,700px);display:flex;align-items:center;color:#fff;overflow:hidden;background:#182019}
.hero::after{content:"";position:absolute;inset:0;background:
  linear-gradient(to top,rgba(16,22,18,.62),transparent 22%),
  radial-gradient(130% 100% at 78% 12%,transparent 42%,rgba(14,19,16,.6) 100%),
  linear-gradient(100deg,rgba(20,29,24,.94) 0%,rgba(28,41,33,.76) 45%,rgba(43,60,48,.22) 100%)}
.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
/* Carrusel de fondo: fotos reales de la clínica en fundido lento */
.hero-slides{position:absolute;inset:0;overflow:hidden}
.hero-slides img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;filter:saturate(1.06) contrast(1.04)}
.hero-slides img:first-child{opacity:1}
.js .hero-slides.listo img{animation:heroFade 27s linear infinite}
.js .hero-slides.listo img:nth-child(2){animation-delay:9s}
.js .hero-slides.listo img:nth-child(3){animation-delay:18s}
@keyframes heroFade{0%{opacity:1;transform:scale(1)}30%{opacity:1}38%{opacity:0;transform:scale(1.11)}92%{opacity:0;transform:scale(1)}100%{opacity:1;transform:scale(1)}}
@media (prefers-reduced-motion:reduce){.hero-slides img{animation:none!important}}
.hero .wrap{position:relative;z-index:2;padding-top:70px;padding-bottom:70px}
.hero h1{color:#fff;max-width:16ch;text-shadow:0 2px 20px rgba(0,0,0,.25)}
.hero p{font-size:1.12rem;max-width:52ch;color:rgba(255,255,255,.94)}
.hero .acciones{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero .credencial{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);padding:6px 16px;border-radius:100px;font-size:.85rem;font-weight:600;margin-bottom:20px}

/* ---------- Secciones ---------- */
section{padding:84px 0}
.alt{background:var(--bg-alt)}
.seccion-head{max-width:640px;margin:0 auto 48px;text-align:center}
.seccion-head p{color:var(--muted);font-size:1.05rem;margin:0}
.kicker{display:block;font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--salvia);margin-bottom:12px}

/* Aparición suave al hacer scroll (solo con JS; sin JS todo es visible) */
.js .rev{opacity:0;transform:translateY(24px);transition:opacity .9s cubic-bezier(.16,1,.3,1),transform .9s cubic-bezier(.16,1,.3,1)}
.js .rev.vis{opacity:1;transform:none}
.js .servicios .rev:nth-child(3n+2){transition-delay:.09s}
.js .servicios .rev:nth-child(3n){transition-delay:.18s}
@media (prefers-reduced-motion:reduce){.js .rev{opacity:1;transform:none;transition:none}}

/* Sección de cine: fondo oscuro de sala */
.cine{background:#182019;color:#dce4d8}
.cine h2{color:#fff}
.cine .muted{color:#a9b6a3}
.cine .kicker{color:var(--salvia)}
.cine .video-nota{color:#8fa088}
.cine .video-marco{border-color:rgba(255,255,255,.1);box-shadow:0 10px 30px rgba(0,0,0,.5),0 0 90px rgba(156,168,132,.14)}

/* Video real de la clínica, enmarcado como teléfono */
.video-marco{max-width:310px;margin:0 auto;border-radius:26px;overflow:hidden;box-shadow:0 10px 24px rgba(38,48,42,.16),0 30px 70px rgba(38,48,42,.22);border:5px solid #fff;background:var(--marca-d);aspect-ratio:9/16}
.video-marco video{width:100%;height:100%;object-fit:cover;display:block}
.video-nota{text-align:center;font-size:.85rem;color:var(--muted);margin-top:14px}

/* Servicios (estrategia pull) */
.servicios{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:22px}
.servicio{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;box-shadow:var(--sombra);display:flex;flex-direction:column;transition:.18s}
.servicio:hover{transform:translateY(-4px);border-color:var(--marca)}
.servicio .ico{width:44px;height:44px;padding:10px;box-sizing:content-box;color:var(--marca);margin-bottom:16px;background:var(--marca-l);border-radius:14px}
.servicio h3{margin-bottom:.4em}
.servicio p{color:var(--muted);font-size:.98rem;flex:1}
.servicio a{margin-top:14px;align-self:flex-start;font-weight:700;color:var(--wa);display:inline-flex;align-items:center;gap:7px;font-size:.95rem}
.servicio a:hover{gap:11px}

/* Banda de seguros */
.banda-seguros{background:var(--marca-l);border-bottom:1px solid var(--line);padding:16px 0}
.banda-seguros .wrap{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;justify-content:center}
.banda-seguros .etiqueta{font-weight:700;color:var(--marca-d);font-size:.92rem;margin-right:4px}
.chip{background:#fff;border:1px solid var(--line);border-radius:100px;padding:5px 14px;font-weight:600;font-size:.85rem;color:var(--marca-d);white-space:nowrap}

/* Preguntas frecuentes */
.faq{max-width:780px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 24px;margin-bottom:12px;box-shadow:var(--sombra)}
.faq summary{font-weight:700;color:var(--marca-d);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.35rem;font-weight:600;color:var(--marca);flex:0 0 auto;transition:.15s}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:12px 0 0;color:var(--muted);font-size:.98rem}

/* Ventajas */
.ventajas{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:30px}
.ventaja .n{width:46px;height:46px;border-radius:12px;background:var(--marca-l);color:var(--marca);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.ventaja h3{font-size:1.05rem}
.ventaja p{color:var(--muted);font-size:.96rem;margin:0}

/* Dos columnas */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.duo img{border-radius:var(--radius);box-shadow:var(--sombra);width:100%;aspect-ratio:5/4;object-fit:cover;filter:saturate(1.04) contrast(1.03)}

/* Testimonios */
.testimonios{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.testimonio{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px 26px;box-shadow:var(--sombra)}
.testimonio::before{content:"\201C";position:absolute;top:2px;right:18px;font-size:4.2rem;line-height:1;color:var(--marca-l);font-family:Georgia,serif}
.estrellas{color:#f5b301;margin-bottom:10px;letter-spacing:2px}
.testimonio p{font-style:italic;color:var(--ink)}
.testimonio .autor{font-weight:700;color:var(--marca);font-size:.92rem;font-style:normal}

/* Info / horario */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:26px}
.tarjeta{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--sombra)}
.tarjeta h3{display:flex;align-items:center;gap:10px}
.tarjeta h3 svg{width:22px;height:22px;color:var(--marca);flex:0 0 22px}
.horario{list-style:none;padding:0;margin:0}
.horario li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line);font-size:.97rem}
.horario li:last-child{border-bottom:none}
.horario .dia{font-weight:600}
.horario .cerrado{color:var(--muted)}

/* CTA final: fotograma con grado oscuro */
.cta{position:relative;background:url(/img/atencion.jpg) center 30%/cover no-repeat;color:#fff;text-align:center;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:
  radial-gradient(120% 120% at 50% 0%,transparent 30%,rgba(14,19,16,.5) 100%),
  linear-gradient(rgba(20,29,24,.87),rgba(20,29,24,.87))}
.cta .wrap{position:relative}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.92);max-width:56ch;margin:0 auto 26px}
@media (min-width:880px){.cta{background-attachment:fixed}}

/* Footer */
.footer{background:var(--marca-d);color:#c3cdbe;padding:56px 0 26px;font-size:.94rem}
.footer h4{color:#fff;font-size:1rem;margin:0 0 14px}
.footer a{color:#c3cdbe}
.footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
.footer .logo-pie{display:inline-block;margin-bottom:16px}
.footer .logo-pie img{height:52px}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:9px}
.legal{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;text-align:center;font-size:.85rem;color:#93a08c}
.redes{display:flex;gap:12px;margin-top:14px}
.redes a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}
.redes a:hover{background:var(--marca)}
.redes svg{width:19px;height:19px}

/* WhatsApp flotante */
.wa-flot{position:fixed;right:22px;bottom:22px;z-index:60;width:60px;height:60px;border-radius:50%;background:var(--wa);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 24px rgba(37,211,102,.45);transition:.2s}
.wa-flot:hover{transform:scale(1.08)}
.wa-flot svg{width:32px;height:32px;fill:#fff}

/* Mapa */
.mapa{border-radius:var(--radius);overflow:hidden;box-shadow:var(--sombra);border:1px solid var(--line)}
.mapa iframe{display:block;width:100%;height:380px;border:0}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  body{font-size:16px}
  .duo{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .menu-btn{display:block}
  .nav{position:fixed;inset:64px 0 auto;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 22px 22px;border-bottom:1px solid var(--line);box-shadow:var(--sombra);display:none}
  .nav.abierto{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav .btn{margin-top:14px;justify-content:center;border-bottom:none}
  section{padding:56px 0}
  .hero{min-height:auto}
  .hero .wrap{padding-top:56px;padding-bottom:56px}
}