:root{
  --blue:#1E63E9; --blue-d:#1748b8; --ink:#0f172a; --muted:#5b6675;
  --green:#16a34a; --red:#e11d48; --violet:#7c3aed; --amber:#f59e0b;
  --bg:#ffffff; --bg-alt:#f5f8fd; --line:#e6ecf5; --card:#ffffff;
  --radius:18px; --shadow:0 10px 30px rgba(15,23,42,.08); --maxw:1140px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,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);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{margin:0;line-height:1.12;letter-spacing:-.02em}
p{margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;border:none;cursor:pointer;
  padding:13px 22px;border-radius:999px;transition:transform .12s ease, box-shadow .12s ease, background .12s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px rgba(30,99,233,.28)}
.btn-primary:hover{background:var(--blue-d)}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-aula{background:var(--blue);color:#fff;padding:10px 16px;font-size:14px}
.btn-aula:hover{background:var(--blue-d)}

/* Marca */
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:44px;width:auto;display:block}
.brand-mark{display:flex}
.brand-txt{display:flex;flex-direction:column;line-height:.92;font-weight:900;letter-spacing:.02em}
.brand-txt b{font-size:14px;color:var(--red)}
.brand-txt .b2{color:var(--blue)}
.brand-txt .b3{color:var(--green)}
.brand-txt.sm b{font-size:13px}

/* Nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.nav-links{display:flex;gap:26px}
.nav-links a{font-weight:600;font-size:15px;color:#334155}
.nav-links a:hover{color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.2s}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#f5f8fd,#ffffff)}
.hero-blob{position:absolute;border-radius:50%;filter:blur(10px);opacity:.5;z-index:0}
.hero-blob.b1{width:420px;height:420px;background:#dbe8ff;top:-160px;right:-120px}
.hero-blob.b2{width:320px;height:320px;background:#e7f7ee;bottom:-160px;left:-120px;opacity:.6}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;padding:64px 22px 72px}
.pill{display:inline-block;background:#e7efff;color:var(--blue);font-weight:800;font-size:12.5px;letter-spacing:.03em;padding:7px 14px;border-radius:999px;text-transform:uppercase}
.hero-copy h1{font-size:clamp(34px,5vw,54px);font-weight:900;margin:16px 0 14px}
.lead{font-size:18px;color:#334155;max-width:33ch}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 30px}
.hero-mini{display:flex;gap:26px;flex-wrap:wrap}
.hero-mini div{display:flex;flex-direction:column}
.hero-mini b{font-size:22px;color:var(--blue);font-weight:900}
.hero-mini span{font-size:13px;color:var(--muted)}

.hero-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:20px;display:flex;flex-direction:column;gap:12px}
.hc-top{display:flex;gap:6px;margin-bottom:4px}
.dot{width:11px;height:11px;border-radius:50%}
.dot-r{background:var(--red)}.dot-b{background:var(--blue)}.dot-g{background:var(--green)}
.hc-row{display:flex;align-items:center;gap:14px;padding:12px;border-radius:14px;background:var(--bg-alt)}
.hc-ic{font-size:24px}
.hc-row b{display:block;font-size:15px}
.hc-row small{color:var(--muted);font-size:13px}

/* Trust */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:22px 22px}
.trust-inner div{text-align:center}
.trust-inner b{display:block;font-size:16px}
.trust-inner span{font-size:13px;color:var(--muted)}

/* Sections */
.section{padding:76px 0}
.section.alt{background:var(--bg-alt)}
.head{max-width:680px;margin:0 auto 40px;text-align:center}
.kicker{font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
.kicker.light{color:#bcd4ff}
.head h1,.head h2{font-size:clamp(26px,3.4vw,38px);font-weight:900;margin:10px 0 12px}

/* Grids / cards */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .14s ease, box-shadow .14s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card-ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;background:color-mix(in srgb,var(--c) 12%,#fff);margin-bottom:14px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:#475569;font-size:15px}
.feat{padding:8px}
.feat-ic{font-size:30px;margin-bottom:10px}
.feat h3{font-size:17px;margin-bottom:6px}
.feat p{color:#475569;font-size:14.5px}

/* Niveles */
.levels{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.level{width:150px;border:1px solid var(--line);border-left:6px solid var(--c);border-radius:14px;padding:18px 20px;background:#fff}
.level b{display:block;font-size:30px;font-weight:900;color:var(--c)}
.level span{font-size:14px;color:var(--muted)}

/* Aula virtual */
.aula-box{background:linear-gradient(150deg,#0b1220,#17346b 60%,#1E63E9);color:#fff;border-radius:26px;padding:44px;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;overflow:hidden}
.aula-copy h2{color:#fff;margin:10px 0 14px}
.aula-copy p{color:#dbe7ff;font-size:16px;max-width:46ch}
.aula-list{list-style:none;padding:0;margin:18px 0 26px;display:grid;gap:8px;color:#eaf1ff;font-size:15px}
.aula-mock{display:flex;justify-content:center}
.mock-phone{background:#fff;color:var(--ink);border-radius:20px;padding:16px;width:230px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.mp-head{font-weight:800;font-size:14px;margin-bottom:12px}
.mp-line{height:9px;border-radius:6px;background:#eef2f8;margin:8px 0}
.mp-line.long{width:80%}
.mp-card{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:12px;padding:9px 11px;font-size:13.5px;font-weight:600;margin:8px 0}
.mp-card.ok{border-color:#bbf7d0;background:#f0fdf4}
.mp-badge{width:22px;height:22px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800}
.mp-badge.ok{background:var(--green)}
.mp-bar{height:8px;background:#eef2f8;border-radius:6px;overflow:hidden;margin:14px 0 6px}
.mp-bar i{display:block;height:100%;background:var(--blue)}
.mock-phone small{color:var(--muted);font-size:12px}

/* Contacto */
.contacto{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:grid;gap:14px;box-shadow:var(--shadow)}
.form label{display:grid;gap:6px;font-size:14px;font-weight:600;color:#334155}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form input,.form select,.form textarea{font:inherit;font-weight:500;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--blue)}
.form-nota{color:var(--green);font-weight:700;font-size:14px}
.info{display:grid;gap:14px;align-content:start}
.info-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}
.info-item span{font-size:22px}
.info-item b{font-size:15px}
.info-item p{color:#475569;font-size:14px;margin-top:2px}
.info-map{height:150px;border-radius:14px;background:repeating-linear-gradient(45deg,#eef3fb,#eef3fb 12px,#e6ecf5 12px,#e6ecf5 24px);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;border:1px solid var(--line)}

/* Footer */
.footer{background:#0b1220;color:#cbd5e1;padding:44px 0 30px}
.foot-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:26px;align-items:start}
.foot-brand p{color:#94a3b8;font-size:14px;margin-top:10px;max-width:34ch}
.footer .brand-txt b{color:#fff}
.footer .brand-txt .b2{color:#7fb0ff}
.footer .brand-txt .b3{color:#6ee7a8}
.foot-links{display:grid;gap:10px}
.foot-links a{color:#cbd5e1;font-size:14px}
.foot-links a:hover{color:#fff}
.foot-legal{font-size:13px;color:#94a3b8;display:grid;gap:6px}
.foot-legal a{color:#cbd5e1}

/* Tablón / Blog — tarjetas */
.posts{align-items:stretch}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .14s ease, box-shadow .14s ease}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.post-thumb{aspect-ratio:16/10;background:var(--bg-alt);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-cat{align-self:flex-start;font-size:12px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--c,#1E63E9);background:color-mix(in srgb,var(--c,#1E63E9) 12%,#fff);padding:4px 10px;border-radius:999px}
.post-body h3{font-size:18px;line-height:1.2}
.post-body p{color:#475569;font-size:14.5px;flex:1}
.post-date{color:var(--muted);font-size:13px;font-weight:600}

/* Página de artículo del blog */
.article{padding:40px 0 72px;background:var(--bg)}
.article-wrap{max-width:760px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:22px;font-weight:600}
.crumbs a:hover{color:var(--blue)}
.crumbs span{margin:0 4px;color:#c3ccd8}
.crumbs .crumb-cur{color:var(--ink)}
.article-title{font-size:clamp(28px,4vw,42px);font-weight:900;margin:14px 0 12px}
.article-meta{color:var(--muted);font-size:14px;font-weight:600;margin-bottom:22px}
.article-hero{margin:0 0 28px;border-radius:20px;overflow:hidden;border:1px solid var(--line);background:var(--bg-alt)}
.article-hero img{width:100%;max-height:440px;object-fit:cover}
/* Placeholder de color cuando la entrada no tiene imagen */
.post-thumb.ph,.article-hero.ph{display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--c,#1E63E9) 13%,#fff)}
.post-thumb.ph svg,.article-hero.ph svg{width:40px;height:40px;color:var(--c,#1E63E9);opacity:.9}
.article-hero.ph{aspect-ratio:16/6;min-height:150px}
.article-hero.ph svg{width:56px;height:56px}
/* Filtro por categoría del blog */
.blog-filter{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 26px}
.blog-filter button{font:inherit;font-size:13.5px;font-weight:700;color:#334155;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 15px;cursor:pointer;transition:all .14s ease}
.blog-filter button:hover{border-color:var(--blue)}
.blog-filter button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.post-card.hide{display:none}
.article-body{font-size:17px;line-height:1.72;color:#28303c}
.article-body h2{font-size:23px;font-weight:800;margin:34px 0 12px;letter-spacing:-.01em}
.article-body p{margin:0 0 18px}
.article-list{margin:0 0 18px;padding-left:22px;display:grid;gap:12px}
.article-list li{line-height:1.65}
.article-cta{margin:40px 0 8px;padding:24px 26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-alt);display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.article-cta b{font-size:17px}
.article-cta .btn{white-space:nowrap}
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:34px 0 10px}
.pn-item{display:flex;flex-direction:column;gap:4px;border:1px solid var(--line);border-radius:14px;padding:14px 16px;background:#fff;transition:border-color .14s ease}
.pn-item:hover{border-color:var(--blue)}
.pn-item span{font-size:12.5px;color:var(--muted);font-weight:700}
.pn-item b{font-size:14.5px;line-height:1.3}
.pn-item.next{text-align:right}
.back-blog{margin-top:26px;font-weight:700}
.back-blog a{color:var(--blue)}

/* Formulario de inscripción */
.form-inscripcion{max-width:760px;margin:0 auto}
.form-sub{font-weight:800;font-size:13px;letter-spacing:.02em;color:var(--muted);text-transform:uppercase;margin-top:4px;padding-top:14px;border-top:1px dashed var(--line)}
.form .check{display:flex;flex-direction:row;align-items:flex-start;gap:10px;font-weight:500;color:#475569;font-size:13.5px}
.form .check input{width:18px;height:18px;margin-top:1px;flex:none;accent-color:var(--blue)}
.form .check a{color:var(--blue);font-weight:700}

/* Contacto (info + mapa) */
.contacto-wrap{display:grid;grid-template-columns:1fr .9fr;gap:24px;align-items:stretch}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-content:start}
.info-grid .info-item{margin:0}
.info-grid .info-item.wide{grid-column:1/-1}
.info-item a:hover{color:var(--blue)}
.map-embed{border:1px solid var(--line);border-radius:16px;overflow:hidden;min-height:320px;line-height:0;box-shadow:var(--shadow)}
.map-embed iframe{display:block;width:100%;height:100%;min-height:320px;border:0}

/* Responsive */
@media (max-width:900px){
  .nav-links{position:fixed;inset:66px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:8px 0;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-140%);transition:transform .25s ease}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:14px 24px}
  .burger{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:46px 22px 54px}
  .hero-card{order:2}
  .grid-3,.grid-4{grid-template-columns:1fr 1fr}
  .trust-inner{grid-template-columns:1fr 1fr;gap:20px}
  .aula-box{grid-template-columns:1fr;padding:32px}
  .aula-mock{order:-1}
  .contacto{grid-template-columns:1fr}
  .contacto-wrap{grid-template-columns:1fr}
  .prev-next{grid-template-columns:1fr}
  .foot-inner{grid-template-columns:1fr;gap:22px}
}
@media (max-width:560px){
  .grid-3,.grid-4{grid-template-columns:1fr}
  .f-row{grid-template-columns:1fr}
  .info-grid{grid-template-columns:1fr}
  .article-cta{flex-direction:column;align-items:flex-start}
  .hero-mini{gap:18px}
  .section{padding:56px 0}
}

/* ░░ PROFESORES ░░ */
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.teacher{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .14s ease,box-shadow .14s ease}
.teacher:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.teacher-photo{aspect-ratio:1/1;background:var(--bg-alt);overflow:hidden}
.teacher-photo img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .3s ease}
.teacher:hover .teacher-photo img{transform:scale(1.04)}
.teacher-body{padding:16px 16px 18px}
.teacher-body h3{margin:2px 0 0;font-size:17px;line-height:1.25}
.t-role{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--c,#1E63E9);background:color-mix(in srgb,var(--c,#1E63E9) 12%,#fff);padding:4px 10px;border-radius:999px;margin-bottom:10px}
.teacher-body p{margin:8px 0 0;font-size:13.5px;line-height:1.55;color:#475569}

/* ░░ INSCRIPCIÓN ░░ */
.inscribe{background:linear-gradient(150deg,#0b1220,#17346b 58%,#1E63E9);color:#fff;border-radius:26px;padding:46px;display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;overflow:hidden;box-shadow:0 24px 60px rgba(15,23,42,.18)}
.inscribe .kicker.light{color:#bcd4ff}
.inscribe h2{color:#fff;margin:.28em 0 .35em}
.inscribe-copy p{color:#dbe6f8;font-size:16.5px;line-height:1.6;max-width:44ch;margin:0 0 22px}
.btn-white{background:#fff;color:#0b1220;font-weight:800}
.btn-white:hover{background:#eaf1ff}
.inscribe-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.inscribe-steps li{display:flex;align-items:flex-start;gap:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:15px 17px}
.inscribe-steps li>b{flex:none;width:32px;height:32px;border-radius:50%;background:#fff;color:#1748b8;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px}
.inscribe-steps li>div{display:flex;flex-direction:column;gap:2px}
.inscribe-steps li>div b{font-size:15px}
.inscribe-steps li>div span{font-size:13.5px;color:#c9d8ef;line-height:1.45}

@media(max-width:960px){.team-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.inscribe{grid-template-columns:1fr;padding:32px}}
@media(max-width:460px){.team-grid{grid-template-columns:1fr}}