:root{
  --navy:#071a2f;
  --navy-2:#0d2947;
  --blue:#245f91;
  --blue-soft:#e9f1f7;
  --ink:#17202b;
  --muted:#697586;
  --line:#dfe5ea;
  --paper:#ffffff;
  --off:#f6f7f8;
  --cream:#f3f1ed;
  --radius:18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Manrope,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
button{font:inherit}
.container{width:min(1180px,calc(100% - 44px));margin:0 auto}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid #edf0f2;
  backdrop-filter:blur(10px);
}
.nav-wrap{height:72px;display:flex;align-items:center;gap:28px}
.brand{font-size:20px;font-weight:800;letter-spacing:.08em;color:var(--navy);min-width:150px}
.brand img{max-height:44px;width:auto;display:block}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto;font-size:13px;font-weight:600;color:#334054}
.main-nav a{padding:25px 0;position:relative}
.main-nav a::after{content:"";position:absolute;left:0;bottom:18px;width:0;height:2px;background:var(--navy);transition:.2s ease}
.main-nav a:hover::after{width:100%}
.nav-cta{background:var(--navy);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;font-weight:700}
.nav-toggle{display:none;margin-left:auto;border:0;background:none;padding:6px}
.nav-toggle span{display:block;width:23px;height:2px;background:var(--navy);margin:5px 0}

/* Hero */
.hero{padding:72px 0 66px;background:linear-gradient(180deg,#fff 0%,#fbfcfd 100%)}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:74px;align-items:center}
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--blue);display:inline-block;margin-bottom:14px}
.hero h1{font-size:clamp(46px,6vw,76px);line-height:1.02;letter-spacing:-.05em;margin:0;color:var(--navy);font-weight:800}
.hero h1 span{color:var(--blue)}
.hero-copy>p{font-size:18px;color:#556272;max-width:610px;margin:24px 0 28px;line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 19px;border-radius:11px;font-size:13px;font-weight:800;border:1px solid transparent;transition:.2s ease}
.btn-primary{background:var(--navy);color:white}
.btn-primary:hover{transform:translateY(-1px);background:#0a2340}
.btn-ghost{background:#fff;border-color:#cfd8df;color:var(--navy)}
.btn-ghost:hover{border-color:var(--navy)}
.hero-notes{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;color:#6d7885;font-size:12px}
.hero-notes span{position:relative;padding-left:13px}
.hero-notes span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--blue);position:absolute;left:0;top:7px}

.hero-board{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 18px 50px rgba(15,38,65,.08)}
.board-top{padding:14px 17px;display:flex;justify-content:space-between;align-items:center;font-size:11px;font-weight:700;color:#566171;border-bottom:1px solid var(--line)}
.board-status{background:#eaf5ee;color:#2c6d47;padding:6px 9px;border-radius:999px}
.board-art{height:235px;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:22px 24px}
.art-redaccion{background:
  linear-gradient(135deg,rgba(255,255,255,.18),transparent 40%),
  linear-gradient(135deg,#0a2038 0%,#123f67 65%,#dfe9f2 65%,#dfe9f2 100%)}
.art-code{font-size:92px;line-height:.8;font-weight:800;letter-spacing:-.08em;color:white}
.art-small{position:absolute;right:22px;top:22px;font-size:10px;letter-spacing:.16em;font-weight:800;color:#0d2947;writing-mode:vertical-rl}
.board-content{padding:24px}
.board-content h2{margin:0 0 18px;color:var(--navy);font-size:27px;letter-spacing:-.03em}
.board-meta{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:18px}
.board-meta span{padding:14px 10px 14px 0;font-size:10px;color:#7b8591}
.board-meta strong{display:block;font-size:12px;color:var(--navy);margin-bottom:2px}
.board-content>a{font-size:13px;font-weight:800;color:var(--blue);display:flex;justify-content:space-between}

/* Quick areas */
.quick-links{border-top:1px solid #eef1f3;border-bottom:1px solid #eef1f3;background:#fff}
.quick-row{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:15px 0;scrollbar-width:none}
.quick-row::-webkit-scrollbar{display:none}
.quick-title{font-size:12px;font-weight:800;color:var(--navy);margin-right:8px;white-space:nowrap}
.quick-row button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;font-size:11px;font-weight:700;color:#586574;cursor:pointer;white-space:nowrap}
.quick-row button:hover{border-color:#a9b7c3;color:var(--navy)}

/* Sections */
.section{padding:88px 0}
.courses-section{background:#fff}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:38px;margin-bottom:30px}
.section-heading h2{font-size:clamp(32px,4vw,50px);letter-spacing:-.04em;color:var(--navy);margin:0}
.section-heading>p{max-width:500px;color:var(--muted);font-size:14px;margin:0 0 5px;line-height:1.7}
.section-heading.compact{margin-bottom:26px}

.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.filter-btn{border:1px solid var(--line);background:white;color:#657180;padding:8px 12px;border-radius:10px;font-size:11px;font-weight:700;cursor:pointer}
.filter-btn.active{background:var(--navy);color:white;border-color:var(--navy)}

.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;transition:.2s ease}
.course-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(20,43,66,.08)}
.course-cover{height:170px;padding:18px;position:relative;overflow:hidden;display:flex;align-items:flex-end}
.course-cover.redaccion{background:linear-gradient(135deg,#0b223b 0%,#1f5f91 70%,#dce9f2 70%)}
.course-cover.excel{background:linear-gradient(135deg,#eff4f7 0%,#dce7ec 65%,#173652 65%)}
.course-cover.oratoria{background:linear-gradient(135deg,#e8ecf0 0%,#f5f3ef 62%,#173652 62%)}
.course-cover.investigacion{background:linear-gradient(135deg,#143653 0%,#244f73 60%,#d6e0e8 60%)}
.course-cover .cover-code{font-size:52px;font-weight:800;letter-spacing:-.06em;color:#fff;line-height:1}
.course-cover.excel .cover-code,.course-cover.oratoria .cover-code{color:var(--navy)}
.course-cover .cover-label{position:absolute;top:16px;left:18px;font-size:9px;font-weight:800;letter-spacing:.14em;color:rgba(255,255,255,.88)}
.course-cover.excel .cover-label,.course-cover.oratoria .cover-label{color:#446071}
.course-cover .cover-mark{position:absolute;right:17px;bottom:16px;width:58px;height:8px;border-top:2px solid currentColor;border-bottom:2px solid currentColor;opacity:.45}
.course-cover.redaccion,.course-cover.investigacion{color:white}
.course-cover.excel,.course-cover.oratoria{color:var(--navy)}
.course-body{padding:18px 18px 17px}
.course-category{font-size:10px;font-weight:800;letter-spacing:.11em;color:var(--blue);text-transform:uppercase}
.course-title{font-size:20px;line-height:1.25;color:var(--navy);margin:8px 0 15px;letter-spacing:-.02em}
.course-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:17px}
.course-meta span{font-size:10px;color:#6c7783;background:#f3f5f7;border-radius:7px;padding:6px 8px}
.course-action{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #edf0f2;padding-top:14px;font-size:12px;font-weight:800;color:var(--navy)}
.course-action:hover{color:var(--blue)}

/* Modalities */
.modalities-section{background:var(--off)}
.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mode-card{background:#fff;border:1px solid #e5e9ec;border-radius:16px;padding:25px}
.mode-icon{display:inline-flex;width:36px;height:36px;border-radius:10px;background:var(--blue-soft);align-items:center;justify-content:center;color:var(--blue);font-size:11px;font-weight:800;margin-bottom:24px}
.mode-card h3{font-size:18px;color:var(--navy);margin:0 0 9px}
.mode-card p{font-size:13px;color:#667381;margin:0;line-height:1.7}

/* About */
.about-section{background:#fff}
.about-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:90px;align-items:start}
.about-title h2{font-size:clamp(34px,4.5vw,54px);line-height:1.08;letter-spacing:-.04em;color:var(--navy);margin:0}
.about-text>p{font-size:18px;color:#566271;line-height:1.75;margin:4px 0 28px;max-width:680px}
.about-tags{display:flex;flex-wrap:wrap;gap:9px}
.about-tags span{font-size:11px;font-weight:700;color:#536170;border:1px solid var(--line);border-radius:999px;padding:8px 11px;background:#fff}

/* Contact */
.contact-section{padding:0 0 90px}
.contact-box{background:var(--navy);border-radius:20px;padding:40px 44px;display:flex;justify-content:space-between;align-items:center;gap:40px}
.contact-small{font-size:10px;letter-spacing:.14em;font-weight:800;color:#9ebbd3}
.contact-box h2{font-size:clamp(28px,4vw,44px);max-width:700px;color:#fff;letter-spacing:-.04em;margin:8px 0 10px}
.contact-box p{color:#bac6d1;margin:0;font-size:13px}
.btn-light{background:#fff;color:var(--navy);min-width:190px}

/* Footer */
.site-footer{border-top:1px solid #e9edf0;background:#fff}
.footer-main{padding:38px 0 28px;display:flex;justify-content:space-between;gap:40px;align-items:flex-start}
.footer-brand{font-size:20px;letter-spacing:.08em;color:var(--navy)}
.footer-main p{margin:8px 0 0;color:#8a939d;font-size:10px;text-transform:uppercase;letter-spacing:.08em}
.footer-links{display:flex;gap:22px;flex-wrap:wrap;font-size:11px;font-weight:700;color:#5f6b78}
.footer-links a:hover{color:var(--navy)}
.footer-bottom{border-top:1px solid #edf0f2;padding:16px 0 24px;display:flex;justify-content:space-between;color:#98a0a9;font-size:10px}
.floating-wa{position:fixed;right:22px;bottom:22px;width:50px;height:50px;border-radius:15px;background:#1f6b49;color:white;display:grid;place-items:center;font-size:11px;font-weight:800;box-shadow:0 10px 22px rgba(0,0,0,.15);z-index:30}

/* Simple secondary pages */
.simple-page{min-height:76vh;display:grid;place-items:center;padding:80px 20px;background:#f7f8f9}
.simple-card{max-width:720px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:48px;text-align:left}
.simple-card h1{font-size:44px;letter-spacing:-.04em;color:var(--navy);margin:0 0 14px}
.simple-card p{color:#65717e;line-height:1.75}
.simple-card .btn{margin-top:12px}

@media (max-width:1040px){
  .main-nav,.nav-wrap>.nav-cta{display:none}
  .nav-toggle{display:block}
  .main-nav.open{display:flex;position:absolute;top:72px;left:22px;right:22px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 18px 40px rgba(15,35,55,.12);flex-direction:column;align-items:stretch;gap:0;padding:8px 18px}
  .main-nav.open a{padding:14px 0;border-bottom:1px solid #eef1f3}
  .main-nav.open a:last-child{border-bottom:0}
  .hero-grid{grid-template-columns:1fr;gap:42px}
  .hero-board{max-width:680px}
  .course-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap{grid-template-columns:1fr;gap:30px}
}

@media (max-width:720px){
  .container{width:min(100% - 30px,1180px)}
  .nav-wrap{height:66px}
  .brand{min-width:0}
  .hero{padding:54px 0 48px}
  .hero h1{font-size:46px}
  .hero-copy>p{font-size:15px;margin:20px 0 23px}
  .hero-actions{flex-direction:column}.hero-actions .btn{width:100%}
  .board-art{height:190px}.art-code{font-size:70px}
  .board-meta{grid-template-columns:1fr}.board-meta span{border-bottom:1px solid var(--line)}.board-meta span:last-child{border-bottom:0}
  .section{padding:68px 0}
  .section-heading{flex-direction:column;align-items:flex-start;gap:12px}.section-heading>p{font-size:13px}
  .course-grid,.mode-grid{grid-template-columns:1fr}
  .contact-section{padding-bottom:66px}.contact-box{padding:30px 24px;flex-direction:column;align-items:flex-start}.btn-light{width:100%}
  .footer-main{flex-direction:column}.footer-links{gap:14px 18px}.footer-bottom{flex-direction:column;gap:5px}
  .simple-card{padding:32px 24px}.simple-card h1{font-size:34px}
}

/* =========================================================
   V4 - GALERÍA PRINCIPAL
   ========================================================= */
.hero-gallery{
  position:relative;
  min-height:500px;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:22px;
  background:#e9eff4;
  box-shadow:0 18px 50px rgba(15,38,65,.08);
}
.gallery-track{position:absolute;inset:0}
.gallery-slide{
  position:absolute;
  inset:0;
  opacity:0;
  visibility:hidden;
  transition:opacity .55s ease;
  background:#173f62;
}
.gallery-slide.active{opacity:1;visibility:visible}
.gallery-slide img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
}
.gallery-slide::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(3,19,38,.70),rgba(3,19,38,.05) 55%,transparent 78%);
  pointer-events:none;
}
.gallery-slide.gallery-fallback{
  background:
    linear-gradient(135deg,rgba(255,255,255,.10),transparent 42%),
    linear-gradient(135deg,#0b223b 0%,#245f91 68%,#dce7ef 68%);
}
.gallery-slide.gallery-fallback::before{
  content:"Añade aquí una foto real de SABENZA";
  position:absolute;
  top:28px;
  right:28px;
  z-index:2;
  max-width:190px;
  color:rgba(255,255,255,.8);
  font-size:10px;
  line-height:1.5;
  letter-spacing:.08em;
  text-transform:uppercase;
  text-align:right;
}
.gallery-caption{
  position:absolute;
  z-index:3;
  left:30px;
  right:80px;
  bottom:34px;
  color:#fff;
}
.gallery-caption span{
  display:block;
  margin-bottom:7px;
  font-size:10px;
  font-weight:800;
  letter-spacing:.14em;
}
.gallery-caption strong{
  display:block;
  max-width:440px;
  font-size:28px;
  line-height:1.18;
  letter-spacing:-.03em;
}
.gallery-btn{
  position:absolute;
  z-index:5;
  top:50%;
  transform:translateY(-50%);
  width:40px;
  height:40px;
  border:0;
  border-radius:50%;
  background:rgba(255,255,255,.92);
  color:var(--navy);
  font-size:27px;
  line-height:1;
  cursor:pointer;
  box-shadow:0 5px 16px rgba(0,0,0,.12);
}
.gallery-prev{left:16px}
.gallery-next{right:16px}
.gallery-dots{
  position:absolute;
  z-index:6;
  right:28px;
  bottom:27px;
  display:flex;
  align-items:center;
  gap:7px;
}
.gallery-dots button{
  width:7px;
  height:7px;
  padding:0;
  border:0;
  border-radius:999px;
  background:rgba(255,255,255,.58);
  cursor:pointer;
  transition:.2s ease;
}
.gallery-dots button.active{width:24px;background:#fff}

/* =========================================================
   V4 - OFERTA MENSUAL / TARJETAS CON FOTO OPCIONAL
   ========================================================= */
.subsection-heading{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin:70px 0 24px;
  padding-top:38px;
  border-top:1px solid #edf0f2;
}
.subsection-heading h3{
  margin:0;
  color:var(--navy);
  font-size:30px;
  letter-spacing:-.03em;
}
.subsection-heading p{
  margin:0 0 4px;
  max-width:430px;
  color:var(--muted);
  font-size:13px;
}
.past-block{margin-top:20px}
.past-heading{margin-top:64px}
.course-grid-secondary,.course-grid-past{margin-top:0}

.course-cover{
  height:190px;
  position:relative;
  overflow:hidden;
  padding:0;
  display:block;
  background:#dfe7ed;
}
.course-cover-photo img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition:transform .35s ease;
}
.course-card:hover .course-cover-photo img{transform:scale(1.025)}
.course-cover-photo::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(4,22,40,.25),transparent 50%);
  pointer-events:none;
}
.course-cover-photo.image-failed{
  background:linear-gradient(135deg,#143653,#245f91);
}
.course-cover-fallback{
  padding:18px;
  display:flex;
  align-items:flex-end;
  color:#fff;
  background:
    linear-gradient(135deg,rgba(255,255,255,.14),transparent 46%),
    linear-gradient(135deg,var(--cover) 0%,var(--cover) 70%,#dce5ec 70%);
}
.course-cover-fallback .cover-code{
  font-size:52px;
  font-weight:800;
  letter-spacing:-.06em;
  color:#fff;
  line-height:1;
}
.course-cover-fallback .cover-label{
  position:absolute;
  top:18px;
  left:18px;
  font-size:9px;
  font-weight:800;
  letter-spacing:.14em;
  color:rgba(255,255,255,.9);
}
.course-cover-fallback .cover-mark{
  position:absolute;
  right:18px;
  bottom:18px;
  width:56px;
  height:8px;
  border-top:2px solid rgba(255,255,255,.55);
  border-bottom:2px solid rgba(255,255,255,.55);
}
.course-status{
  position:absolute;
  z-index:4;
  top:14px;
  left:14px;
  padding:7px 10px;
  border-radius:999px;
  font-size:9px;
  font-weight:800;
  letter-spacing:.03em;
  box-shadow:0 5px 16px rgba(0,0,0,.10);
}
.course-cover-fallback .cover-label + .course-status{left:auto;right:14px}
.status-open{background:#e9f5ec;color:#2d6a46}
.status-upcoming{background:#fff;color:var(--navy)}
.status-finished{background:rgba(255,255,255,.92);color:#667381}

/* Cuando hay código/fondo, el estado va a la derecha para no tapar la categoría */
.course-cover-fallback .course-status{left:auto;right:14px}

.course-card-past{background:#fbfbfb}
.course-card-past .course-cover{filter:saturate(.72)}
.course-action-muted{color:#87919b;cursor:default}
.empty-courses{
  grid-column:1/-1;
  padding:28px;
  border:1px dashed #cfd7de;
  border-radius:14px;
  background:#fafbfc;
  color:#77828e;
  font-size:13px;
}

@media (max-width:1040px){
  .hero-gallery{min-height:450px;max-width:680px}
}

@media (max-width:720px){
  .hero-gallery{min-height:360px;border-radius:16px}
  .gallery-caption{left:22px;right:70px;bottom:28px}
  .gallery-caption strong{font-size:22px}
  .gallery-slide.gallery-fallback::before{top:20px;right:20px;max-width:150px;font-size:9px}
  .gallery-btn{width:36px;height:36px;font-size:24px}
  .gallery-prev{left:12px}.gallery-next{right:12px}
  .gallery-dots{right:20px;bottom:20px}
  .subsection-heading{flex-direction:column;align-items:flex-start;gap:9px;margin-top:54px;padding-top:30px}
  .subsection-heading h3{font-size:25px}
  .course-cover{height:205px}
}