/* ============================================================
   Serenidad — Consulta de Psicología
   Hoja de estilos principal
   ============================================================ */

:root{
  --bg:#f7f5f1;
  --bg-soft:#efe9df;
  --text:#1f2a36;
  --muted:#6b7a8a;
  --primary:#3a5a7a;
  --primary-2:#7c9dbf;
  --accent:#c9a36a;
  --accent-2:#a87c4f;
  --green:#7faf94;
  --white:#ffffff;
  --shadow-sm:0 4px 14px rgba(31,49,69,.08);
  --shadow-md:0 12px 30px rgba(31,49,69,.12);
  --shadow-lg:0 24px 60px rgba(31,49,69,.18);
  --radius:14px;
  --radius-lg:22px;
  --header-h:78px;
  --serif:'Playfair Display', Georgia, serif;
  --sans:'Poppins','Segoe UI', Arial, sans-serif;
}

*{box-sizing:border-box}
html{
  scroll-behavior:smooth;
}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--text);
  background:var(--bg);
  line-height:1.65;
  overflow-x:clip;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.2;margin:0 0 .5em}

.container{width:min(1200px,calc(100% - 40px));margin:0 auto}
.section{padding:90px 0;position:relative}
.section-title{font-size:clamp(2rem,3.5vw,2.8rem);text-align:center;margin-bottom:.4em;color:var(--primary)}
.section-subtitle{text-align:center;color:var(--muted);max-width:680px;margin:0 auto 60px;font-size:1.05rem}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:500;
  background:rgba(255,255,255,.96);
  box-shadow:var(--shadow-sm);
  overflow:visible;
}
.site-nav{
  display:flex;align-items:center;justify-content:space-between;
  width:min(1300px,calc(100% - 40px));margin:0 auto;
  min-height:var(--header-h);gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;z-index:210}
.brand img{height:48px;width:auto}
.site-menu{display:flex;align-items:center;gap:26px}
.site-menu .menu-logo{display:none}
.site-menu > a{
  font-weight:600;color:var(--text);position:relative;padding:6px 0;
  transition:color .2s;
}
.site-menu > a:hover,.site-menu > a.active{color:var(--primary)}
.site-menu > a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.site-menu > a:hover::after,.site-menu > a.active::after{transform:scaleX(1)}
.cta-call{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;
  background:none;
  color:var(--primary);font-weight:700;
  transition:color .2s;
}
.cta-call:hover{color:var(--accent-2)}
.hamburger{
  display:none;flex-direction:column;gap:5px;
  width:44px;height:44px;justify-content:center;align-items:center;
  cursor:pointer;background:none;border:none;padding:0;
  position:relative;z-index:501; /* encima del header pero dentro de su contexto */
}
.hamburger span{
  display:block;width:26px;height:3px;border-radius:2px;
  background:var(--primary);transition:transform .25s,opacity .2s;
}
.hamburger.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* Overlay oscuro detrás del menú */
.menu-overlay{
  visibility:hidden;opacity:0;
  position:fixed;top:0;left:0;width:100vw;height:100vh;
  background:rgba(20,30,45,.55);
  z-index:600;   /* encima del header(500) pero DEBAJO del menú */
  transition:opacity .3s,visibility .3s;
  pointer-events:none;  /* nunca interceptar clicks — el JS maneja el cierre */
}
.menu-overlay.is-open{
  visibility:visible;opacity:1;
  pointer-events:auto;  /* solo el overlay recibe click para cerrarse */
}

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:calc(88vh - var(--header-h));
  display:flex;align-items:center;justify-content:center;
  text-align:center;color:#fff;overflow:hidden;padding:60px 20px;
  /* Imagen directamente en el hero — no en ::before para evitar problemas de z-index */
  background:
    linear-gradient(135deg,rgba(31,49,69,.62),rgba(124,157,191,.48)),
    url('https://images.unsplash.com/photo-1499209974431-9dddcece7f88?w=1600&q=80') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  /* Capa vacía — reservada para efectos adicionales si se necesitan */
  pointer-events:none;
}
.hero h1{font-size:clamp(2.4rem,5.5vw,4.4rem);margin-bottom:.3em;text-shadow:0 4px 20px rgba(0,0,0,.35)}
.hero p{font-size:clamp(1.05rem,2vw,1.3rem);max-width:720px;margin:0 auto 30px;opacity:.95}
.hero-cta{display:inline-flex;gap:14px;flex-wrap:wrap;justify-content:center}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:700;
  box-shadow:var(--shadow-sm);transition:transform .2s, box-shadow .2s;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
.btn-ghost{background:rgba(255,255,255,.18);color:#fff;border:2px solid rgba(255,255,255,.6)}
.btn-primary-solid{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}

/* ============ SERVICES ============ */
.services-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;
}
.service-card{
  background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .25s, box-shadow .25s;
  display:flex;flex-direction:column;
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.service-card img{width:100%;height:200px;object-fit:cover}
.service-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.service-body h3{color:var(--primary);font-size:1.25rem;margin:0}
.service-body p{margin:0;color:var(--muted);font-size:.95rem;flex:1}
.service-body a{color:var(--accent-2);font-weight:700;font-size:.9rem;margin-top:6px}

/* ============ ABOUT ============ */
.about{background:var(--bg-soft)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-grid img{border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.about-grid h2{color:var(--primary)}
.about-grid p{color:var(--muted)}
.about-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
.about-list li{display:flex;gap:12px;align-items:flex-start}
.about-list .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);margin-top:8px;flex:0 0 10px}

/* ============ SCHEDULE ============ */
.schedule{background:linear-gradient(135deg,#1f3145,#3a5a7a);color:#fff;text-align:center}
.schedule .section-title{color:#fff}
.schedule .section-subtitle{color:#cfd9e3}
.schedule-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;max-width:900px;margin:0 auto}
.schedule-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);padding:26px 18px;backdrop-filter:blur(8px);
}
.schedule-card h4{font-family:var(--serif);font-size:1.2rem;margin:0 0 8px;color:#ffd9a8}
.schedule-card p{margin:2px 0;font-weight:500}

/* ============ TESTIMONIALS ============ */
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.testimonial{
  background:#fff;border-radius:var(--radius-lg);padding:28px;
  box-shadow:var(--shadow-sm);border-top:4px solid var(--accent);
}
.testimonial p{font-style:italic;color:var(--text)}
.testimonial .who{display:flex;align-items:center;gap:12px;margin-top:14px}
.testimonial .who img{width:48px;height:48px;border-radius:50%;object-fit:cover}
.testimonial .who strong{color:var(--primary)}
.testimonial .who span{display:block;font-size:.85rem;color:var(--muted)}

/* ============ CONTACT ============ */
.contact{background:var(--bg-soft)}
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.contact-info h3{color:var(--primary);font-size:1.5rem}
.contact-info ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:14px}
.contact-info li{display:flex;gap:14px;align-items:flex-start}
.contact-info .ico{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;font-size:1.1rem;flex:0 0 42px;
}
.contact-info strong{color:var(--text)}
.contact-info span{color:var(--muted);font-size:.95rem}
.contact-form{
  background:#fff;border-radius:var(--radius-lg);padding:32px;
  box-shadow:var(--shadow-md);display:grid;gap:14px;
}
.contact-form label{display:grid;gap:6px;font-weight:600;font-size:.9rem;color:var(--text)}
.contact-form input,.contact-form select,.contact-form textarea{
  width:100%;padding:12px 14px;border:1.5px solid #e2dccf;border-radius:10px;
  background:#faf8f3;font-family:inherit;font-size:.95rem;color:var(--text);
  transition:border .2s, box-shadow .2s;
}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--primary-2);box-shadow:0 0 0 4px rgba(124,157,191,.18);
}
.contact-form textarea{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-msg{
  margin-top:6px;padding:14px 18px;border-radius:12px;font-weight:600;
  display:none;animation:popIn .35s ease;
}
.form-msg.success{background:#e8f5ee;color:#2f7a55;border:1px solid #b9dec9;display:block}
.form-msg.error{background:#fdecec;color:#a83232;border:1px solid #f1c0c0;display:block}
@keyframes popIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ============ MAP ============ */
.map-wrap{margin-top:50px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.map-wrap iframe{display:block;width:100%;height:340px;border:0}

/* ============ SOCIAL ============ */
.social{display:flex;gap:12px;margin-top:18px}
.social a{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:#fff;color:var(--primary);box-shadow:var(--shadow-sm);
  font-size:1.1rem;transition:transform .2s, background .2s, color .2s;
}
.social a:hover{transform:translateY(-3px);background:var(--primary);color:#fff}

/* ============ FOOTER ============ */
.site-footer{background:#1a2632;color:#cfd9e3;padding:60px 0 24px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:36px}
.footer-grid h4{color:#fff;font-family:var(--serif);font-size:1.1rem}
.footer-grid ul{list-style:none;padding:0;margin:10px 0 0;display:grid;gap:8px}
.footer-grid a:hover{color:#ffd9a8}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:20px;
  text-align:center;font-size:.85rem;color:#8aa0b8;
}

/* ============ FLOATING BUTTONS ============ */
/* Los FABs usan position:fixed con left/bottom para evitar bugs iOS con right */
.fab{
  position:fixed;
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  z-index:10000;
  color:#fff;
  font-size:1.4rem;
  box-shadow:0 4px 18px rgba(0,0,0,.3);
  cursor:pointer;border:none;text-decoration:none;
  transition:transform .2s,opacity .3s;
}
.fab:hover{transform:scale(1.1)}
.fab-whatsapp{
  left:16px;bottom:24px;
  background:#25d366;
}
/* scroll btn: posicionado desde la izquierda para evitar bugs con right en iOS */
.fab-scroll{
  left:calc(100vw - 72px);  /* equivale a right:16px pero usando left */
  bottom:24px;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  opacity:0;
  pointer-events:none;
}
.fab-scroll.visible{
  opacity:1;
  pointer-events:auto;
}

/* ============ PAGE HEADER (sub-pages) ============ */
.page-hero{
  background:linear-gradient(135deg,rgba(31,49,69,.85),rgba(124,157,191,.65)),
    url('https://images.unsplash.com/photo-1481627834876-b7833e8f5570?w=1600&q=80') center/cover no-repeat;
  color:#fff;padding:120px 20px 80px;text-align:center;position:relative;z-index:2;
}
.page-hero.libros{
  background:linear-gradient(135deg,rgba(31,49,69,.80),rgba(90,130,100,.60)),
    url('https://images.unsplash.com/photo-1512820790803-83ca734da794?w=1600&q=80') center/cover no-repeat;
}
.page-hero.videos{
  background:linear-gradient(135deg,rgba(31,49,69,.80),rgba(60,100,150,.60)),
    url('https://images.unsplash.com/photo-1478720568477-152d9b164e26?w=1600&q=80') center/cover no-repeat;
}
.page-hero h1{font-size:clamp(2.2rem,4.5vw,3.6rem);margin-bottom:.3em}
.page-hero p{max-width:680px;margin:0 auto;font-size:1.1rem;opacity:.95}

/* ============ CATALOG (libros / videos) ============ */
.tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:40px}
.tab{
  padding:10px 22px;border-radius:999px;border:2px solid var(--primary);
  color:var(--primary);background:transparent;font-weight:700;transition:all .2s;
}
.tab:hover,.tab.is-active{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;border-color:transparent}

.cat-block{margin-bottom:60px}
.cat-block h2{
  color:var(--primary);font-size:1.7rem;margin-bottom:20px;
  padding-bottom:10px;border-bottom:2px solid var(--bg-soft);
}
.book-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(155px,1fr));
  gap:22px;
}
.book-card{
  background:#fff;
  border-radius:12px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s;
  display:flex;
  flex-direction:column;
}
.book-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}

/* Portada — ocupa toda la parte superior */
.book-cover{
  width:100%;
  aspect-ratio:2/3;
  background:#e8e3db;
  overflow:hidden;
  flex-shrink:0;
}
.book-cover img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
  transition:transform .3s;
}
.book-card:hover .book-cover img{transform:scale(1.04)}

/* Info: título + autor + botón, centrado, debajo de la imagen */
.book-info{
  padding:10px 10px 12px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  flex:1;
  text-align:center;
}
.book-title{
  font-family:var(--sans);
  font-size:.85rem;
  font-weight:700;
  color:var(--text);
  margin:0;
  line-height:1.3;
}
.book-author{
  margin:0;
  color:var(--muted);
  font-size:.74rem;
  font-style:italic;
  flex:1;
}
.book-buy-btn{
  display:block;
  width:100%;
  margin-top:8px;
  padding:7px 8px;
  text-align:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  color:#fff!important;
  text-decoration:none;
  border-radius:20px;
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.02em;
  transition:opacity .2s,transform .15s;
  white-space:nowrap;
}
.book-buy-btn:hover{opacity:.85;transform:scale(1.02);text-decoration:none!important}

.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.video-card{
  background:#fff;border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s, box-shadow .25s;display:flex;flex-direction:column;
}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.video-thumb{aspect-ratio:16/9;position:relative;background:#000;overflow:hidden;cursor:pointer}
.video-thumb img{width:100%;height:100%;object-fit:cover;opacity:.9;transition:opacity .2s}
.video-card:hover .video-thumb img{opacity:.75}
.video-play-btn{
  position:absolute;inset:0;width:100%;height:100%;background:none;border:none;cursor:pointer;
  display:grid;place-items:center;font-size:3.2rem;color:#fff;
  text-shadow:0 4px 16px rgba(0,0,0,.7);transition:transform .2s;
}
.video-card:hover .video-play-btn{transform:scale(1.12)}
.video-info{padding:14px 16px 16px;display:flex;flex-direction:column;gap:5px;flex:1}
.video-info h4{font-family:var(--sans);font-size:.92rem;color:var(--text);margin:0;line-height:1.35;font-weight:600}
.video-author{margin:0;color:var(--muted);font-size:.8rem}
.video-source-link{
  margin-top:auto;padding-top:8px;font-size:.78rem;font-weight:600;
  color:var(--blue);text-decoration:none;transition:color .15s;
  border-top:1px solid #f0ece5;
}
.video-source-link:hover{color:var(--sage);text-decoration:underline}
/* Platform badges */
.video-platform{
  display:inline-block;font-size:.68rem;font-weight:700;letter-spacing:.04em;
  padding:2px 8px;border-radius:20px;text-transform:uppercase;margin-bottom:2px;
  width:fit-content;
}
.video-platform.youtube{background:#ff0000;color:#fff}
.video-platform.vimeo{background:#1ab7ea;color:#fff}

/* ============ RESPONSIVE ============ */
@media (max-width: 992px){
  :root{--header-h:66px}
  .brand img{height:40px}
  .hamburger{display:flex}

  /* Menú: siempre en su posición final (right:0), oculto con translate */
  .site-menu{
    position:fixed;
    top:0;
    right:0;
    width:min(88vw,340px);
    height:100vh;
    height:100dvh;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    padding:28px 24px 40px;
    gap:4px;
    box-shadow:-4px 0 30px rgba(0,0,0,.18);
    z-index:700;   /* mayor que overlay(600) y header(500) — funciona en contexto body */
    overflow-y:auto;
    overflow-x:hidden;
    /* Oculto desplazado hacia la derecha, fuera del viewport */
    transform:translateX(110%);
    transition:transform .3s ease;
    /* Asegurar que el translate NO se ve afectado por overflow del padre */
    will-change:transform;
  }
  .site-menu.is-open{
    transform:translateX(0);
  }
  .site-menu .menu-logo{
    display:flex;justify-content:flex-start;
    padding:4px 0 18px;border-bottom:1px solid #eee;margin-bottom:12px;
  }
  .site-menu .menu-logo img{height:46px}
  .site-menu > a{
    padding:14px 4px;border-bottom:1px solid #f0ece5;font-size:1.05rem;
  }
  .site-menu .cta-call{
    justify-content:center;margin-top:14px;
    background:linear-gradient(135deg,var(--primary),var(--primary-2));
    color:#fff;box-shadow:var(--shadow-sm);
    padding:12px 20px;
  }
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:36px}
  .form-row{grid-template-columns:1fr}
  .section{padding:64px 0}
}
@media (max-width:520px){
  .hero{min-height:78vh}
  .book-grid{grid-template-columns:repeat(2,1fr)}
  /* Scroll btn: recalcular para pantallas muy estrechas */
  .fab-scroll{left:calc(100vw - 72px)}
}

/* ================================================================
   LIBROS — portada + info + botón compra
   ================================================================ */
.libros-categoria {
  margin-bottom: 72px;
}
.libros-cat-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  color: var(--verde, #7a9e7e);
  border-bottom: 2px solid var(--rosa-claro, #e8c5c0);
  padding-bottom: 10px;
  margin-bottom: 32px;
}
.libros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
  gap: 28px 20px;
}
.libro-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: rgba(255,255,255,0.72);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(120,100,80,.10);
  padding: 16px 12px 14px;
  transition: transform .22s ease, box-shadow .22s ease;
  text-align: center;
}
.libro-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 28px rgba(120,100,80,.18);
}
.libro-cover-link {
  display: block;
  text-decoration: none;
  width: 100%;
}
.libro-cover-wrap {
  width: 100%;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  border-radius: 6px;
  background: #f0ebe3;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 3px 10px rgba(0,0,0,.15);
  margin-bottom: 0;
}
.libro-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .3s ease;
}
.libro-cover-link:hover .libro-cover {
  transform: scale(1.04);
}
.libro-info {
  margin-top: 12px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.libro-title {
  font-family: 'Playfair Display', serif;
  font-size: .88rem;
  font-weight: 700;
  color: #3d3530;
  line-height: 1.3;
  margin: 0;
}
.libro-author {
  font-size: .78rem;
  color: #7a6e65;
  margin: 0;
  font-style: italic;
}
.libro-buy-btn {
  display: inline-block;
  margin-top: 10px;
  padding: 6px 14px;
  background: linear-gradient(135deg, #7a9e7e 0%, #9eb89e 100%);
  color: #fff !important;
  text-decoration: none;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: opacity .2s, transform .2s;
  white-space: nowrap;
}
.libro-buy-btn:hover {
  opacity: .88;
  transform: scale(1.04);
  text-decoration: none;
}

@media (max-width: 600px) {
  .libros-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 18px 12px;
  }
  .libro-title { font-size: .82rem; }
  .libro-buy-btn { font-size: .72rem; padding: 5px 10px; }
}