/* ==========================================================
   Academia del Agua · Hidrosir — Landing
   Diseño: JLE-Tecnologías Web
   ========================================================== */

:root{
  --ink:#0a1c26;
  --ink-2:#123241;
  --deep:#0c3b52;
  --sea:#11698a;
  --aqua:#1fb3c8;
  --foam:#e8f6f9;
  --mist:#f4f8fa;
  --line:#d8e5ea;
  --text:#22343d;
  --muted:#5b6f78;
  --gold:#f2b23e;
  --gold-2:#e09b1d;
  --white:#ffffff;
  --wa:#25d366;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px -20px rgba(10,28,38,.35);
  --shadow-sm:0 6px 20px -10px rgba(10,28,38,.25);
  --maxw:1180px;
  --font-head:"Sora", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body:"Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-body);font-size:17px;line-height:1.65;
  color:var(--text);background:var(--white);overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--sea);text-decoration:none}
a:hover{color:var(--deep)}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--ink);line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5.4vw,3.9rem);font-weight:700}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem);font-weight:700}
h3{font-size:1.2rem;font-weight:600}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--aqua);outline-offset:3px;border-radius:6px}

.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:999}
.skip:focus{left:10px;top:10px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:96px 0}
.section--mist{background:var(--mist)}
.section--dark{background:var(--ink);color:#c9dbe2}
.section--dark h2,.section--dark h3{color:#fff}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-head);font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--sea);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:currentColor;border-radius:2px}
.section--dark .eyebrow{color:var(--aqua)}
.lead{font-size:1.15rem;color:var(--muted);max-width:640px}
.section--dark .lead{color:#a9c3cd}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.center .eyebrow::before{display:none}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-head);font-weight:600;font-size:1rem;
  padding:15px 26px;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  text-align:center;line-height:1.2;min-height:52px;
}
.btn svg{width:20px;height:20px;flex:none}
.btn--gold{background:var(--gold);color:var(--ink);box-shadow:0 10px 26px -10px rgba(242,178,62,.7)}
.btn--gold:hover{background:var(--gold-2);color:var(--ink);transform:translateY(-2px)}
.btn--ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn--ghost:hover{background:#fff;color:var(--ink)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--deep);color:#fff;transform:translateY(-2px)}
.btn--wa{background:var(--wa);color:#06351a}
.btn--wa:hover{background:#1ebe5b;color:#06351a;transform:translateY(-2px)}
.btn--block{width:100%}

/* ---------- Header ---------- */
.header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease;
  padding:16px 0;
}
.header.is-scrolled{background:rgba(255,255,255,.96);backdrop-filter:blur(10px);box-shadow:0 4px 24px -12px rgba(10,28,38,.3);padding:10px 0}
.header__in{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand img{width:46px;height:46px;border-radius:12px;object-fit:cover;background:#fff}
.brand__txt{font-family:var(--font-head);font-weight:700;line-height:1.05;font-size:1.05rem}
.brand__txt small{display:block;font-weight:500;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;opacity:.8}
.header.is-scrolled .brand{color:var(--ink)}
.nav{display:flex;align-items:center;gap:28px}
.nav a{color:#fff;font-weight:500;font-size:.95rem;position:relative}
.nav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--gold);transition:width .25s}
.nav a:hover::after{width:100%}
.header.is-scrolled .nav a{color:var(--ink)}
.nav .btn{padding:11px 20px;min-height:44px;font-size:.92rem}
.nav .btn::after{display:none}
.header.is-scrolled .nav .btn--gold{color:var(--ink)}
.burger{display:none;background:none;border:0;width:46px;height:46px;border-radius:12px;cursor:pointer;color:#fff;align-items:center;justify-content:center}
.burger svg{width:28px;height:28px}
.header.is-scrolled .burger{color:var(--ink)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;color:#fff;overflow:hidden;padding:130px 0 90px}
.hero__bg{position:absolute;inset:0;z-index:-2}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(100deg,rgba(6,22,31,.94) 0%,rgba(9,45,63,.86) 45%,rgba(12,59,82,.55) 100%),
    radial-gradient(circle at 85% 20%,rgba(31,179,200,.35),transparent 50%);
}
.hero__grid{display:grid;grid-template-columns:1.25fr .85fr;gap:56px;align-items:center}
.hero h1{color:#fff;margin-bottom:.35em}
.hero h1 em{font-style:normal;color:var(--aqua);background:linear-gradient(90deg,#5fd8e8,#1fb3c8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero .eyebrow{color:var(--gold)}
.hero__sub{font-size:1.2rem;color:#cfe3ea;max-width:600px;margin-bottom:30px}
.hero__ctas{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0}
.chips li{display:flex;align-items:center;gap:8px;font-size:.9rem;font-weight:500;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18)}
.chips svg{width:16px;height:16px;color:var(--aqua);flex:none}

.hero-card{
  background:rgba(255,255,255,.97);color:var(--text);border-radius:var(--radius);
  padding:30px;box-shadow:0 30px 70px -25px rgba(0,0,0,.6);position:relative;
}
.hero-card__tag{position:absolute;top:-14px;left:28px;background:var(--gold);color:var(--ink);font-family:var(--font-head);font-weight:700;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;padding:6px 14px;border-radius:999px}
.hero-card h2{font-size:1.45rem;margin:6px 0 6px}
.hero-card p{color:var(--muted);font-size:.95rem;margin-bottom:18px}
.hero-card ul{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:10px}
.hero-card li{display:flex;gap:12px;align-items:flex-start;font-size:.95rem}
.hero-card li svg{width:20px;height:20px;color:var(--sea);flex:none;margin-top:3px}
.price{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding:14px 0 18px;border-top:1px dashed var(--line)}
.price strong{font-family:var(--font-head);font-size:2rem;color:var(--ink);letter-spacing:-.02em}
.price span{color:var(--muted);font-size:.92rem}

.scroll-hint{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:6px}
.scroll-hint span{width:2px;height:34px;background:linear-gradient(rgba(255,255,255,.8),transparent);animation:drip 1.8s infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- Stats ---------- */
.stats{background:var(--ink);color:#fff;padding:0}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 20px;text-align:center;border-right:1px solid rgba(255,255,255,.08)}
.stat:last-child{border-right:0}
.stat strong{display:block;font-family:var(--font-head);font-size:2.3rem;font-weight:700;color:var(--aqua);line-height:1}
.stat span{display:block;margin-top:8px;font-size:.9rem;color:#a9c3cd}

/* ---------- Oportunidad ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.media{position:relative}
.media__main{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/5}
.media__main img{width:100%;height:100%;object-fit:cover}
.media__badge{
  position:absolute;right:-18px;bottom:28px;background:#fff;border-radius:var(--radius-sm);
  padding:16px 18px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;max-width:250px
}
.media__badge svg{width:38px;height:38px;color:var(--sea);flex:none}
.media__badge strong{display:block;font-family:var(--font-head);color:var(--ink);font-size:.98rem;line-height:1.2}
.media__badge small{color:var(--muted);font-size:.8rem}
.checks{list-style:none;padding:0;margin:24px 0 30px;display:grid;gap:14px}
.checks li{display:flex;gap:14px;align-items:flex-start}
.checks .ic{width:30px;height:30px;border-radius:50%;background:var(--foam);color:var(--sea);display:grid;place-items:center;flex:none;margin-top:1px}
.checks .ic svg{width:16px;height:16px}
.checks strong{color:var(--ink);font-family:var(--font-head);font-weight:600}

/* ---------- Temas ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:48px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s;position:relative;overflow:hidden
}
.card::after{content:"";position:absolute;left:0;top:0;height:4px;width:100%;background:linear-gradient(90deg,var(--sea),var(--aqua));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::after{transform:scaleX(1)}
.card__ic{width:58px;height:58px;border-radius:16px;background:linear-gradient(135deg,var(--deep),var(--aqua));color:#fff;display:grid;place-items:center;margin-bottom:20px}
.card__ic svg{width:28px;height:28px}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);font-size:.95rem;margin:0}

/* ---------- Curso ---------- */
.course{display:grid;grid-template-columns:1.35fr .9fr;gap:40px;align-items:start;margin-top:48px}
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.fact{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:22px;display:flex;gap:16px;align-items:flex-start}
.fact__ic{width:44px;height:44px;border-radius:12px;background:var(--foam);color:var(--sea);display:grid;place-items:center;flex:none}
.fact__ic svg{width:22px;height:22px}
.fact h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:600;margin-bottom:4px;font-family:var(--font-body)}
.fact p{margin:0;color:var(--ink);font-weight:600;font-size:1rem;line-height:1.45}
.fact--wide{grid-column:1/-1}

.enroll{background:var(--ink);color:#c9dbe2;border-radius:var(--radius);padding:34px;position:sticky;top:96px;box-shadow:var(--shadow)}
.enroll h3{color:#fff;font-size:1.35rem}
.enroll .price{border-color:rgba(255,255,255,.15)}
.enroll .price strong{color:#fff}
.enroll .price span{color:#a9c3cd}
.pay{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:10px}
.pay li{display:flex;gap:10px;align-items:center;font-size:.95rem}
.pay svg{width:18px;height:18px;color:var(--aqua);flex:none}
.enroll .btn+.btn{margin-top:12px}
.enroll small{display:block;margin-top:16px;color:#8fb0bc;font-size:.82rem;text-align:center}

/* ---------- Proceso ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:52px;counter-reset:st;position:relative}
.steps::before{content:"";position:absolute;top:30px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,transparent,rgba(31,179,200,.6),transparent)}
.step{text-align:center;position:relative;padding:0 6px}
.step__n{width:60px;height:60px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;background:var(--ink-2);border:2px solid var(--aqua);color:#fff;font-family:var(--font-head);font-weight:700;font-size:1.2rem;position:relative;z-index:1}
.step h3{font-size:1.08rem}
.step p{font-size:.93rem;color:#a9c3cd;margin:0}

/* ---------- Para quién ---------- */
.who{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.who__item{background:#fff;border-radius:var(--radius);padding:28px;border-left:4px solid var(--aqua);box-shadow:var(--shadow-sm)}
.who__item h3{font-size:1.1rem}
.who__item p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- Galería ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;grid-auto-flow:dense;gap:14px;margin-top:44px}
.gallery button{padding:0;border:0;border-radius:var(--radius-sm);overflow:hidden;cursor:zoom-in;position:relative;background:var(--line)}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery button:hover img{transform:scale(1.06)}
.gallery button::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 55%,rgba(10,28,38,.45));opacity:0;transition:opacity .3s}
.gallery button:hover::after{opacity:1}
.g-tall{grid-row:span 2}
.g-wide{grid-column:span 2}

.lightbox{position:fixed;inset:0;background:rgba(5,15,21,.94);z-index:300;display:none;align-items:center;justify-content:center;padding:60px 16px}
.lightbox.is-open{display:flex}
.lightbox img{max-height:85vh;max-width:min(1100px,100%);width:auto;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-btn{position:absolute;background:rgba(255,255,255,.12);border:0;color:#fff;width:50px;height:50px;border-radius:50%;cursor:pointer;display:grid;place-items:center}
.lb-btn:hover{background:rgba(255,255,255,.25)}
.lb-btn svg{width:24px;height:24px}
.lb-close{top:16px;right:16px}
.lb-prev{left:16px;top:50%;transform:translateY(-50%)}
.lb-next{right:16px;top:50%;transform:translateY(-50%)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:44px auto 0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;list-style:none;padding:20px 56px 20px 22px;font-family:var(--font-head);font-weight:600;color:var(--ink);position:relative;font-size:1.02rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;border-right:2px solid var(--sea);border-bottom:2px solid var(--sea);transform:translateY(-70%) rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details[open]{border-color:var(--aqua);box-shadow:var(--shadow-sm)}
.faq .ans{padding:0 22px 20px;color:var(--muted)}
.faq .ans p:last-child{margin:0}

/* ---------- Ubicación / Contacto ---------- */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;margin-top:44px;align-items:start}
.info{display:grid;gap:14px}
.info a,.info div.info__row{display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;color:var(--text);transition:border-color .2s,transform .2s}
.info a:hover{border-color:var(--aqua);transform:translateX(4px)}
.info .fact__ic{background:var(--foam)}
.info strong{display:block;font-family:var(--font-head);color:var(--ink);font-size:.98rem}
.info small{color:var(--muted);font-size:.9rem;word-break:break-word}
.map{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);margin-top:6px;aspect-ratio:16/11;background:var(--line)}
.map iframe{width:100%;height:100%;border:0;display:block}

.form{background:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);border:1px solid var(--line)}
.form h3{font-size:1.4rem}
.form p.small{color:var(--muted);font-size:.95rem}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:16px;color:var(--text);background:var(--mist);
  border:1.5px solid var(--line);border-radius:12px;padding:13px 15px;transition:border-color .2s,background .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--aqua);background:#fff}
.field textarea{min-height:120px;resize:vertical}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.legal{font-size:.82rem;color:var(--muted);margin:12px 0 0;text-align:center}
.alert{padding:14px 16px;border-radius:12px;margin-bottom:16px;font-weight:500;display:none}
.alert.ok{display:block;background:#e5f7ec;color:#14532d;border:1px solid #b5e5c6}
.alert.err{display:block;background:#fdecec;color:#7f1d1d;border:1px solid #f5c2c2}

/* ---------- CTA final ---------- */
.cta{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--deep),var(--sea));color:#fff;border-radius:28px;padding:64px 48px;display:grid;grid-template-columns:1.4fr auto;gap:30px;align-items:center}
.cta::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.07);right:-120px;top:-180px}
.cta::after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(31,179,200,.25);right:140px;bottom:-170px}
.cta h2{color:#fff;margin-bottom:.3em;position:relative;z-index:1}
.cta p{color:#d3e9ef;margin:0;font-size:1.1rem;position:relative;z-index:1}
.cta__btns{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}

/* ---------- Footer ---------- */
.footer{background:var(--ink);color:#8fb0bc;padding:64px 0 28px;font-size:.95rem}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer a{color:#a9c3cd}
.footer a:hover{color:#fff}
.footer .brand{color:#fff;margin-bottom:14px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem}

/* ---------- WhatsApp flotante y barra móvil ---------- */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:90;width:60px;height:60px;border-radius:50%;background:var(--wa);color:#fff;display:grid;place-items:center;box-shadow:0 10px 30px -8px rgba(37,211,102,.7);transition:transform .2s}
.wa-float:hover{transform:scale(1.08);color:#fff}
.wa-float svg{width:32px;height:32px}
.wa-float::before{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--wa);animation:pulse 2.2s infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.8}100%{transform:scale(1.55);opacity:0}}
.mbar{display:none}

/* ---------- Animaciones de entrada ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width:1080px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .hero__grid{grid-template-columns:1fr 1fr;gap:36px}
  .course{grid-template-columns:1fr}
  .enroll{position:static}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .g-wide{grid-column:span 3}
}

@media (max-width:900px){
  .section{padding:72px 0}
  .burger{display:inline-flex}
  .nav{
    position:fixed;inset:0;background:var(--ink);flex-direction:column;justify-content:center;gap:26px;
    transform:translateX(100%);transition:transform .35s ease;z-index:150;padding:40px 24px
  }
  .nav.is-open{transform:none}
  .nav a,.header.is-scrolled .nav a{color:#fff;font-size:1.25rem;font-family:var(--font-head)}
  .nav .btn{font-size:1rem;padding:14px 26px;min-height:52px}
  .nav-close{position:absolute;top:18px;right:18px;background:rgba(255,255,255,.1);border:0;color:#fff;width:48px;height:48px;border-radius:12px;display:grid;place-items:center;cursor:pointer}
  .nav-close svg{width:26px;height:26px}
  .hero{padding:120px 0 80px;min-height:auto}
  .hero__grid{grid-template-columns:1fr}
  .hero-card{max-width:520px}
  .scroll-hint{display:none}
  .split{grid-template-columns:1fr;gap:44px}
  .media{max-width:520px;margin:0 auto;width:100%}
  .media__main{aspect-ratio:4/3}
  .media__badge{right:12px;bottom:-22px}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .steps::before{display:none}
  .who{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .cta{grid-template-columns:1fr;padding:48px 30px;text-align:center}
  .cta__btns{align-items:stretch}
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__grid>div:first-child{grid-column:1/-1}
}
@media (min-width:901px){.nav-close{display:none}}

@media (max-width:640px){
  body{font-size:16px;padding-bottom:72px}
  .container{padding:0 16px}
  .section{padding:60px 0}
  .brand img{width:40px;height:40px}
  .brand__txt{font-size:.98rem}
  .hero{padding:104px 0 56px}
  .hero__sub{font-size:1.05rem}
  .hero__ctas{flex-direction:column}
  .hero__ctas .btn{width:100%}
  .chips li{font-size:.82rem;padding:7px 12px}
  .hero-card{padding:26px 20px}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .stat{padding:24px 12px;border-bottom:1px solid rgba(255,255,255,.08)}
  .stat:nth-child(2){border-right:0}
  .stat strong{font-size:1.9rem}
  .cards{grid-template-columns:1fr;gap:16px;margin-top:36px}
  .card{padding:24px 22px}
  .facts{grid-template-columns:1fr}
  .fact{padding:18px}
  .enroll{padding:28px 22px}
  .steps{grid-template-columns:1fr;row-gap:30px}
  .step{display:grid;grid-template-columns:56px 1fr;gap:16px;text-align:left;align-items:start}
  .step__n{margin:0;width:52px;height:52px;font-size:1.05rem}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;gap:10px}
  .g-wide{grid-column:span 2}
  .row2{grid-template-columns:1fr;gap:0}
  .form{padding:26px 18px}
  .cta{border-radius:20px;padding:40px 20px}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer__bottom{flex-direction:column;text-align:center;align-items:center}
  .wa-float{display:none}
  .mbar{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:95;
    padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);
    box-shadow:0 -6px 24px -10px rgba(10,28,38,.35);backdrop-filter:blur(8px)
  }
  .mbar .btn{min-height:48px;padding:12px 10px;font-size:.92rem}
  .lb-prev,.lb-next{top:auto;bottom:18px;transform:none}
  .lb-prev{left:calc(50% - 62px)}
  .lb-next{right:calc(50% - 62px)}
}