/* =====================================================================
   DRPEGUERO — Sistema de diseño "Precisión humana"
   Basado en Brief Maestro Web Dr. Rickart Peguero — Julio 2026, Sección 12
   ===================================================================== */

:root{
  /* Paleta (Sección 12) */
  --azul-profundo:#14213D;
  --azul-clinico:#1F4E79;
  --violeta:#6047D7;
  --turquesa:#087E8B;
  --blanco:#FFFFFF;
  --gris-claro:#F3F6FA;
  --ambar:#A06B00;
  --rojo:#9E2A2B;

  --gris-texto:#3A4250;
  --gris-borde:#E1E6EE;
  --gris-suave:#6B7280;

  /* Tipografía */
  --font-titular:'Manrope', 'Sora', system-ui, sans-serif;
  --font-texto:'Source Sans 3', 'Lato', system-ui, sans-serif;

  /* Espaciado */
  --space-xs:.5rem;
  --space-sm:1rem;
  --space-md:1.5rem;
  --space-lg:2.5rem;
  --space-xl:4rem;
  --space-2xl:6rem;

  /* Layout */
  --max-content:1280px;
  --max-lectura:720px;
  --radio:12px;
  --radio-sm:8px;
  --sombra: 0 2px 18px rgba(20,33,61,0.07);
  --foco: 3px solid var(--turquesa);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}

body{
  margin:0;
  font-family:var(--font-texto);
  font-size:16px;
  line-height:1.65;
  color:var(--gris-texto);
  background:var(--blanco);
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:var(--font-titular);
  color:var(--azul-profundo);
  line-height:1.25;
  margin:0 0 var(--space-sm);
  font-weight:700;
}
h1{font-size:clamp(1.9rem, 4vw, 2.75rem);}
h2{font-size:clamp(1.5rem, 3vw, 2.1rem);}
h3{font-size:1.25rem;}
p{margin:0 0 var(--space-sm);}
a{color:var(--azul-clinico);}
img{max-width:100%;display:block;}

.contenedor{
  max-width:var(--max-content);
  margin:0 auto;
  padding:0 var(--space-md);
}
.lectura{max-width:var(--max-lectura);}

.seccion{padding:var(--space-2xl) 0;}
.seccion--gris{background:var(--gris-claro);}
.seccion--oscura{background:var(--azul-profundo); color:#DCE3F0;}
.seccion--oscura h2, .seccion--oscura h3{color:var(--blanco);}

.visually-hidden{
  position:absolute; width:1px;height:1px; padding:0;margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}
.skip-link{
  position:absolute; left:-999px; top:0; background:var(--azul-profundo);
  color:#fff; padding:.75rem 1.25rem; z-index:200; border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

:focus-visible{outline:var(--foco); outline-offset:2px;}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  font-family:var(--font-texto); font-weight:600; font-size:1rem;
  padding:.85rem 1.5rem; border-radius:var(--radio-sm); border:2px solid transparent;
  cursor:pointer; text-decoration:none; min-height:44px; line-height:1.2;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0) scale(.97);}
.btn-primario{background:var(--turquesa); color:#fff;}
.btn-primario:hover{background:#066a75;}
.btn-secundario{background:transparent; color:var(--azul-profundo); border-color:var(--azul-profundo);}
.btn-secundario:hover{background:var(--azul-profundo); color:#fff;}
.btn-whatsapp{background:#1F8A50; color:#fff;}
.btn-whatsapp:hover{background:#166b3d;}
.btn-block{width:100%;}
.btn-sm{padding:.55rem 1rem; font-size:.9rem; min-height:40px;}

/* ---------- Header / Navegación ---------- */
.header{
  position:sticky; top:0; z-index:100; background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px); border-bottom:1px solid var(--gris-borde);
}
.header__barra{
  display:flex; align-items:center; justify-content:space-between;
  padding:.85rem var(--space-md); max-width:var(--max-content); margin:0 auto; gap:1rem;
}
.marca{
  font-family:var(--font-titular); font-weight:800; font-size:1.15rem;
  color:var(--azul-profundo); text-decoration:none; letter-spacing:-0.02em;
  display:flex; align-items:center; gap:.55rem;
}
.marca__icono{height:52px; width:52px; flex:none; border:none; background:none;}
.marca__texto{display:flex; flex-direction:column; line-height:1.1;}
.marca small{font-family:var(--font-texto); font-weight:400; font-size:.68rem; color:var(--gris-suave);}

.nav-principal{display:none;}
.nav-principal ul{list-style:none; display:flex; gap:1.5rem; margin:0; padding:0;}
.nav-principal a{color:var(--azul-profundo); text-decoration:none; font-weight:600; font-size:.95rem; position:relative;}
.nav-principal a::after{
  content:""; position:absolute; left:0; bottom:-4px; width:0; height:2px;
  background:var(--turquesa); transition:width .25s ease;
}
.nav-principal a:hover{color:var(--turquesa);}
.nav-principal a:hover::after{width:100%;}

.header__acciones{display:flex; align-items:center; gap:.75rem;}
.header__telefono{
  display:none; align-items:center; gap:.4rem; color:var(--azul-profundo);
  text-decoration:none; font-weight:600; font-size:.92rem;
}

.nav-toggle{
  display:inline-flex; background:none; border:2px solid var(--gris-borde);
  border-radius:var(--radio-sm); padding:.5rem .65rem; min-width:44px; min-height:44px;
  align-items:center; justify-content:center; cursor:pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
  content:""; display:block; width:20px; height:2px; background:var(--azul-profundo);
  position:relative; transition:all .2s ease;
}
.nav-toggle span::before{position:absolute; top:-6px;}
.nav-toggle span::after{position:absolute; top:6px;}

.nav-movil{
  display:none; flex-direction:column; gap:0; background:#fff; border-top:1px solid var(--gris-borde);
  padding:var(--space-sm) var(--space-md);
}
.nav-movil.abierto{display:flex;}
.nav-movil a{
  color:var(--azul-profundo); text-decoration:none; font-weight:600; padding:.9rem 0;
  border-bottom:1px solid var(--gris-borde); font-size:1rem;
}
.nav-movil .btn{margin-top:1rem;}

@media (min-width:960px){
  .nav-toggle{display:none;}
  .nav-movil{display:none !important;}
  .nav-principal{display:block;}
  .header__telefono{display:inline-flex;}
}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(160deg, var(--azul-profundo) 0%, #1B3160 60%, var(--azul-clinico) 100%);
  background-size:180% 180%;
  animation:heroGradiente 18s ease infinite;
  color:#fff; padding:var(--space-2xl) 0;
}
@keyframes heroGradiente{
  0%{background-position:0% 50%;}
  50%{background-position:100% 50%;}
  100%{background-position:0% 50%;}
}
.hero__grid{display:grid; gap:var(--space-lg); align-items:center;}
.hero__eyebrow{
  color:#9FD8DE; font-weight:700; letter-spacing:.04em; text-transform:uppercase;
  font-size:.8rem; margin-bottom:var(--space-xs);
}
.hero h1{color:#fff;}
.hero__apoyo{color:#C9D3E6; font-size:1.05rem; max-width:56ch;}
.hero__cta{display:flex; flex-wrap:wrap; gap:1rem; margin-top:var(--space-md);}
.hero__micro{color:#9FB0D0; font-size:.85rem; margin-top:var(--space-sm);}
.hero__media{
  background:rgba(255,255,255,.06); border:1px dashed rgba(255,255,255,.35);
  border-radius:var(--radio); aspect-ratio:4/5; display:flex; align-items:center;
  justify-content:center; text-align:center; color:#C9D3E6; font-size:.85rem; padding:1.5rem;
}
@media (min-width:900px){
  .hero__grid{grid-template-columns:1.2fr .8fr;}
}

/* ---------- Barra de confianza ---------- */
.confianza{background:var(--blanco); border-bottom:1px solid var(--gris-borde);}
.confianza__lista{
  display:grid; grid-template-columns:repeat(2,1fr); gap:var(--space-md);
  padding:var(--space-lg) 0;
}
.confianza__item{display:flex; align-items:center; gap:.65rem; font-weight:600; color:var(--azul-profundo); font-size:.92rem;}
.confianza__icono{
  width:38px; height:38px; border-radius:50%; background:var(--gris-claro);
  display:flex; align-items:center; justify-content:center; flex:none; color:var(--turquesa);
}
@media (min-width:800px){ .confianza__lista{grid-template-columns:repeat(4,1fr);} }

/* ---------- Tarjetas ---------- */
.grid-tarjetas{display:grid; gap:var(--space-md); grid-template-columns:1fr;}
@media (min-width:700px){ .grid-tarjetas--2{grid-template-columns:repeat(2,1fr);} }
@media (min-width:700px){ .grid-tarjetas--4{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1000px){ .grid-tarjetas--4{grid-template-columns:repeat(4,1fr);} }
@media (min-width:1000px){ .grid-tarjetas--3{grid-template-columns:repeat(3,1fr);} }
@media (min-width:700px){ .grid-tarjetas--5{grid-template-columns:repeat(2,1fr);} }
@media (min-width:1100px){ .grid-tarjetas--5{grid-template-columns:repeat(5,1fr);} }

/* ---------- Tarjetas de técnica quirúrgica ---------- */
.tecnica{
  background:#fff; border:1px solid var(--gris-borde); border-radius:var(--radio);
  padding:var(--space-md); margin-bottom:var(--space-sm);
}
.tecnica h4{font-family:var(--font-titular); color:var(--azul-clinico); margin-bottom:.4rem; font-size:1.05rem;}
.tecnica ul{margin:.4rem 0 0; padding-left:1.2rem;}
.tecnica__uso{font-size:.85rem; color:var(--gris-suave); font-weight:600; margin-top:.5rem;}

.tarjeta{
  background:#fff; border:1px solid var(--gris-borde); border-radius:var(--radio);
  padding:var(--space-md); box-shadow:var(--sombra); display:flex; flex-direction:column; gap:.5rem;
  text-decoration:none; color:inherit;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tarjeta h3{margin-bottom:.25rem;}
.tarjeta__enlace{margin-top:auto; font-weight:700; color:var(--turquesa); text-decoration:none; transition:transform .2s ease;}
.tarjeta--acento{border-left:4px solid var(--turquesa);}
a.tarjeta:hover{transform:translateY(-4px); box-shadow:0 12px 28px rgba(20,33,61,0.13); border-color:var(--turquesa);}
a.tarjeta:hover .tarjeta__enlace{transform:translateX(3px);}
.sede{transition:box-shadow .2s ease;}
.sede:hover{box-shadow:0 8px 22px rgba(20,33,61,0.09);}

/* Placeholders de imagen (para maqueta; sustituir por fotografía real) */
.foto-marcador{
  background:repeating-linear-gradient(135deg, #E7ECF5, #E7ECF5 10px, #DEE5F1 10px, #DEE5F1 20px);
  border:1px solid var(--gris-borde); border-radius:var(--radio);
  display:flex; align-items:center; justify-content:center; text-align:center;
  color:var(--gris-suave); font-size:.82rem; padding:1rem; min-height:180px;
}

/* ---------- Proceso ---------- */
.proceso{display:grid; gap:var(--space-md); grid-template-columns:1fr;}
@media (min-width:800px){ .proceso{grid-template-columns:repeat(4,1fr);} }
.proceso__paso{background:#fff; border-radius:var(--radio); border:1px solid var(--gris-borde); padding:var(--space-md);}
.proceso__numero{
  display:inline-flex; align-items:center; justify-content:center; width:40px; height:40px;
  border-radius:50%; background:var(--azul-profundo); color:#fff; font-weight:800; margin-bottom:.75rem;
}

/* ---------- Testimonios ---------- */
.testimonio{background:#fff; border-radius:var(--radio); border:1px solid var(--gris-borde); padding:var(--space-md);}
.testimonio__texto{font-style:italic; color:var(--azul-profundo);}
.testimonio__fuente{font-size:.85rem; color:var(--gris-suave); margin-top:.75rem;}

/* ---------- Ubicaciones ---------- */
.sede{background:#fff; border-radius:var(--radio); border:1px solid var(--gris-borde); padding:var(--space-md); display:flex; flex-direction:column; gap:.4rem;}
.sede__mapa{background:var(--gris-claro); border-radius:var(--radio-sm); min-height:140px; display:flex; align-items:center; justify-content:center; color:var(--gris-suave); font-size:.82rem; margin-top:.5rem;}

/* ---------- Acordeón FAQ ---------- */
.acordeon{border-top:1px solid var(--gris-borde);}
.acordeon__item{border-bottom:1px solid var(--gris-borde);}
.acordeon__pregunta{
  width:100%; text-align:left; background:none; border:none; cursor:pointer;
  font-family:var(--font-titular); font-weight:700; color:var(--azul-profundo);
  padding:1.1rem .25rem; font-size:1.02rem; display:flex; justify-content:space-between; gap:1rem; align-items:center;
}
.acordeon__signo{flex:none; font-size:1.3rem; color:var(--turquesa); display:inline-block; transition:transform .25s ease;}
.acordeon__respuesta{
  max-height:0; overflow:hidden; transition:max-height .25s ease; padding:0 .25rem;
}
.acordeon__item.abierto .acordeon__respuesta{max-height:600px; padding-bottom:1.1rem;}
.acordeon__item.abierto .acordeon__signo{transform:rotate(45deg);}

/* ---------- Alertas ---------- */
.alerta{
  border-radius:var(--radio-sm); padding:1rem 1.15rem; border-left:4px solid var(--ambar);
  background:#FFF6E8; color:#5C3F00; font-size:.95rem;
}
.alerta--urgencia{border-left-color:var(--rojo); background:#FBEAEA; color:#5C1414;}
.alerta strong{display:block; margin-bottom:.25rem;}

/* ---------- CTA final ---------- */
.cta-final{
  background:linear-gradient(135deg, var(--turquesa), var(--azul-clinico));
  color:#fff; text-align:center; border-radius:var(--radio); padding:var(--space-xl) var(--space-md);
}
.cta-final h2{color:#fff;}
.cta-final .hero__cta{justify-content:center;}

/* ---------- Migas de pan ---------- */
.migas{font-size:.85rem; color:var(--gris-suave); padding:1rem 0 0;}
.migas a{color:var(--gris-suave);}

/* ---------- Footer ---------- */
.footer{background:var(--azul-profundo); color:#B9C4DD; padding:var(--space-xl) 0 var(--space-md);}
.footer h3{color:#fff; font-size:1rem;}
.footer a{color:#B9C4DD; text-decoration:none;}
.footer a:hover{color:#fff;}
.footer__grid{display:grid; gap:var(--space-lg); grid-template-columns:1fr;}
@media (min-width:800px){ .footer__grid{grid-template-columns:2fr 1fr 1fr 1fr;} }
.footer__lista{list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.55rem; font-size:.9rem;}
.footer__legal{border-top:1px solid rgba(255,255,255,.12); margin-top:var(--space-lg); padding-top:var(--space-md); font-size:.8rem; display:flex; flex-wrap:wrap; gap:1rem; justify-content:space-between;}
.aviso-medico{font-size:.78rem; color:#8FA0C4; max-width:70ch;}

/* ---------- Botón flotante WhatsApp ---------- */
.whatsapp-flotante{
  position:fixed; right:1rem; bottom:1rem; z-index:150; background:#1F8A50; color:#fff;
  border-radius:999px; width:56px; height:56px; display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(0,0,0,.25); text-decoration:none;
  animation:pulsoWhatsapp 3s ease-in-out infinite;
}
.whatsapp-flotante:hover{background:#166b3d; animation-play-state:paused;}
@keyframes pulsoWhatsapp{
  0%,100%{box-shadow:0 6px 18px rgba(0,0,0,.25);}
  50%{box-shadow:0 6px 22px rgba(31,138,80,.55);}
}

/* ---------- Revelado al hacer scroll (solo si hay JS/IntersectionObserver) ---------- */
.js-reveal-ready .reveal-init{
  opacity:0; transform:translateY(18px);
  transition:opacity .6s ease, transform .6s ease;
}
.js-reveal-ready .reveal-init.en-vista{opacity:1; transform:translateY(0);}
.grid-tarjetas > .reveal-init:nth-child(1){transition-delay:.05s;}
.grid-tarjetas > .reveal-init:nth-child(2){transition-delay:.1s;}
.grid-tarjetas > .reveal-init:nth-child(3){transition-delay:.15s;}
.grid-tarjetas > .reveal-init:nth-child(4){transition-delay:.2s;}
.grid-tarjetas > .reveal-init:nth-child(5){transition-delay:.25s;}
.proceso > .reveal-init:nth-child(1){transition-delay:.05s;}
.proceso > .reveal-init:nth-child(2){transition-delay:.1s;}
.proceso > .reveal-init:nth-child(3){transition-delay:.15s;}
.proceso > .reveal-init:nth-child(4){transition-delay:.2s;}

/* ---------- Utilidades ---------- */
.centro{text-align:center;}
.mt-lg{margin-top:var(--space-lg);}
.eyebrow{
  color:var(--turquesa); font-weight:700; letter-spacing:.04em; text-transform:uppercase;
  font-size:.78rem; margin-bottom:.4rem; display:block;
}