/* ===== Educate 2.0 — sistema visual (inspirado en el sitio de referencia: navy + amarillo) ===== */
:root{
  --navy:#171f38;          /* secciones oscuras / nav texto */
  --navy-2:#1f2a4d;
  --amarillo:#ffd21e;      /* acento principal / botones */
  --amarillo-600:#c99700;  /* amarillo para texto sobre claro */
  --azul:#254aa5;          /* títulos y links azules */
  --azul-950:#141a2e;      /* compat: dark base */
  --tinta:#16203a;         /* texto */
  --papel:#ffffff;         /* fondo claro */
  --papel-2:#eef1f7;
  --gris:#5f6b80;
  --linea:rgba(20,32,60,.12);
  --verde:#ffd21e;         /* alias (btn-verde) => amarillo */
  --verde-600:#c99700;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Archivo',sans-serif;background:var(--papel);color:var(--tinta);-webkit-font-smoothing:antialiased;overflow-x:hidden}
.mono{font-family:'Spline Sans Mono',monospace}
a{color:inherit;text-decoration:none}

/* ===== NAV (claro) ===== */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--linea)}
.nav-in{max-width:1240px;margin:0 auto;padding:0 28px;height:70px;display:flex;align-items:center;gap:32px}
.logo{display:flex;align-items:center;gap:11px;color:var(--tinta)}
.logo-mark{width:36px;height:36px;background:var(--amarillo);border-radius:9px;display:grid;place-items:center;flex-shrink:0;box-shadow:0 4px 14px rgba(255,210,30,.4)}
.logo-mark svg{width:21px;height:21px}
.logo-txt{font-weight:900;font-size:20px;letter-spacing:-.5px;line-height:1;color:var(--navy)}
.logo-txt small{display:block;font-size:9.5px;font-weight:700;letter-spacing:2.5px;color:var(--amarillo-600);margin-top:2px}
nav.links{display:flex;gap:26px;margin-left:8px}
nav.links a{color:var(--gris);font-size:14.5px;font-weight:600;transition:color .2s}
nav.links a:hover,nav.links a.active{color:var(--azul)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-user{display:flex;align-items:center;gap:10px;color:var(--tinta);font-size:14px;font-weight:600}
.ava-u{width:36px;height:36px;border-radius:50%;background:var(--azul);display:grid;place-items:center;color:#fff;font-family:'Archivo Black';font-size:14px;flex-shrink:0}
.btn{font-family:'Archivo';font-weight:700;font-size:14px;cursor:pointer;border:none;padding:11px 20px;border-radius:9px;transition:transform .15s,box-shadow .2s,background .2s;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-ghost{background:transparent;color:var(--navy);border:1.5px solid var(--linea)}
.btn-ghost:hover{border-color:var(--azul);color:var(--azul)}
.btn-verde{background:var(--amarillo);color:var(--navy)}
.btn-verde:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(255,210,30,.5)}
.btn-azul{background:var(--azul);color:#fff}
.btn-azul:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(37,74,165,.4)}

/* ===== HERO (claro, con aros) ===== */
.hero{position:relative;z-index:2;background:var(--papel);color:var(--tinta);padding:64px 28px 76px;overflow:hidden}
.hero::after{content:"";position:absolute;top:-120px;right:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(255,210,30,.16),transparent 68%);z-index:0}
.hero-in{position:relative;z-index:2;max-width:1240px;margin:0 auto}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:'Spline Sans Mono';font-size:12.5px;font-weight:600;letter-spacing:1px;color:var(--amarillo-600);border:1px solid rgba(201,151,0,.35);padding:7px 14px;border-radius:100px;margin-bottom:24px;background:rgba(255,210,30,.1)}
.eyebrow .dot{width:7px;height:7px;background:var(--amarillo);border-radius:50%;box-shadow:0 0 10px var(--amarillo);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
h1.hero-t{font-family:'Archivo Black';font-size:clamp(42px,6vw,80px);line-height:.94;letter-spacing:-2px;color:var(--navy);max-width:14ch;margin-bottom:22px;text-transform:uppercase}
h1.hero-t em{font-style:normal;color:var(--azul);position:relative}
h1.hero-t em::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:14px;background:var(--amarillo);z-index:-1;opacity:.5;transform:skewX(-8deg)}
.hero p.sub{font-size:18px;line-height:1.6;color:var(--gris);max-width:50ch;margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-stats{display:flex;gap:34px;margin-top:48px;flex-wrap:wrap}
.stat .n{font-family:'Archivo Black';font-size:36px;line-height:1;color:var(--navy)}
.stat .n span{color:var(--amarillo-600)}
.stat .l{font-family:'Spline Sans Mono';font-size:11.5px;color:var(--gris);margin-top:6px;letter-spacing:.5px}
.stat{position:relative;padding-left:18px}
.stat::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;background:var(--amarillo);border-radius:3px}

/* imagen del hero con marco + aros */
.hero-visual{position:relative}
.hero-visual .frame{position:relative;z-index:2;border-radius:26px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 40px 80px -28px rgba(23,31,56,.45);border:6px solid #fff;outline:1px solid var(--linea)}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover;display:block}
.hero-visual .frame .ph{position:absolute;inset:0;background:linear-gradient(135deg,var(--navy),var(--navy-2));display:grid;place-items:center}
.hero-visual .rings{position:absolute;left:-58px;top:50%;transform:translateY(-50%);z-index:1;display:flex;flex-direction:column;gap:16px}
.hero-visual .rings i{width:34px;height:34px;border-radius:50%;border:2px solid var(--azul);opacity:.5}
.hero-visual .rings i:nth-child(2){border-color:var(--amarillo-600);opacity:.85}
.hero-visual .badge-float{position:absolute;z-index:3;background:#fff;border-radius:14px;padding:13px 15px;box-shadow:0 18px 40px -14px rgba(23,31,56,.35);display:flex;align-items:center;gap:11px}
.hero-visual .badge-float .bi{width:38px;height:38px;border-radius:10px;background:var(--amarillo);display:grid;place-items:center;color:var(--navy);flex-shrink:0}
.hero-visual .badge-float .bi svg{width:21px;height:21px}
.hero-visual .badge-float strong{display:block;font-size:14.5px;color:var(--tinta);font-family:'Archivo Black'}
.hero-visual .badge-float small{font-size:11px;color:var(--gris);font-family:'Spline Sans Mono'}
.hero-visual .b-tl{top:14px;right:-20px}
.hero-visual .b-br{bottom:14px;left:-14px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-visual{display:none}}

/* ===== PROGRAMAS (sección oscura redondeada) ===== */
.programas{background:var(--navy);color:#fff;border-radius:48px;margin:8px 20px 0;position:relative;z-index:2;overflow:hidden}
.programas::before{content:"";position:absolute;top:-80px;left:-80px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(255,210,30,.14),transparent 70%)}
.programas-in{max-width:1240px;margin:0 auto;padding:66px 28px 74px;position:relative;z-index:2}
main{position:relative;z-index:2}
.section-label{font-family:'Spline Sans Mono';font-size:12.5px;font-weight:700;letter-spacing:2px;color:var(--amarillo);text-transform:uppercase;margin-bottom:10px}
.sec-head{text-align:center;max-width:680px;margin:0 auto 30px}
.sec-head h2{font-family:'Archivo Black';font-size:clamp(30px,4vw,48px);letter-spacing:-1.4px;color:#fff;text-transform:uppercase;line-height:1}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.card{background:#fff;border-radius:16px;overflow:hidden;cursor:pointer;border:1px solid rgba(255,255,255,.08);transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s;display:flex;flex-direction:column;position:relative}
.card:hover{transform:translateY(-6px);box-shadow:0 26px 50px -18px rgba(0,0,0,.5)}
.card-top{height:160px;position:relative;overflow:hidden;display:grid;place-items:center;background:var(--navy-2)}
.card-top img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card-top::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,26,46,.35),transparent 45%)}
.card-top .pat{position:absolute;inset:0;opacity:.16;background-image:radial-gradient(circle,#fff 1.2px,transparent 1.2px);background-size:15px 15px}
.card-top .glyph{position:relative;z-index:2;font-family:'Archivo Black';font-size:54px;color:rgba(255,255,255,.92)}
.card-lvl{position:absolute;top:12px;left:12px;z-index:3;font-family:'Spline Sans Mono';font-size:10.5px;font-weight:600;letter-spacing:.5px;background:rgba(20,26,46,.72);color:#fff;padding:5px 10px;border-radius:6px;backdrop-filter:blur(4px)}
.card-price{position:absolute;top:12px;right:12px;z-index:3;font-family:'Archivo';font-weight:800;font-size:14px;background:var(--amarillo);color:var(--navy);padding:6px 11px;border-radius:8px}
.card-price.free{background:#fff;color:var(--navy)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.card-cat{font-family:'Spline Sans Mono';font-size:11px;font-weight:700;color:var(--amarillo-600);letter-spacing:.5px;margin-bottom:9px;text-transform:uppercase}
.card h3{font-size:18px;font-weight:800;line-height:1.22;letter-spacing:-.3px;margin-bottom:12px;flex:1;color:var(--tinta)}
.card-meta{display:flex;align-items:center;gap:14px;font-size:12.5px;color:var(--gris);font-weight:600;padding-top:14px;border-top:1px solid var(--linea)}
.card-meta .m{display:flex;align-items:center;gap:6px}
.card-meta svg{width:15px;height:15px;opacity:.6}
.card-meta .go{margin-left:auto;color:var(--azul);display:grid;place-items:center;width:30px;height:30px;background:var(--papel-2);border-radius:8px}
.card:hover .go{background:var(--amarillo)}
.card-meta .go svg{transition:transform .2s;opacity:1;width:16px;height:16px}
.card:hover .go svg{transform:translateX(2px)}

/* filtros (sobre sección oscura) */
.filters{display:flex;gap:9px;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.chip{font-family:'Archivo';font-weight:700;font-size:13.5px;cursor:pointer;padding:8px 16px;border-radius:100px;border:1.5px solid rgba(255,255,255,.16);background:transparent;color:#c3cbde;transition:all .18s}
.chip:hover{border-color:var(--amarillo);color:#fff}
.chip.on{background:var(--amarillo);border-color:var(--amarillo);color:var(--navy)}

/* ===== POR QUÉ ===== */
.why{background:var(--papel)}
.why-in{max-width:1240px;margin:0 auto;padding:70px 28px}
.why .sec-head h2{color:var(--navy)}
.why .section-label{color:var(--azul)}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:12px}
.why-card{background:var(--papel);border:1px solid var(--linea);border-radius:16px;padding:26px 22px;transition:transform .2s,box-shadow .2s}
.why-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -20px rgba(23,31,56,.25)}
.why-card .wi{width:50px;height:50px;border-radius:13px;background:rgba(255,210,30,.18);display:grid;place-items:center;color:var(--amarillo-600);margin-bottom:15px}
.why-card .wi svg{width:25px;height:25px}
.why-card strong{display:block;font-size:16.5px;font-weight:800;margin-bottom:7px;color:var(--navy)}
.why-card p{font-size:14px;color:var(--gris);line-height:1.55}
@media(max-width:860px){.why-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.why-grid{grid-template-columns:1fr}}

/* ===== TESTIMONIOS ===== */
.testi{background:var(--papel-2)}
.testi-in{max-width:1240px;margin:0 auto;padding:72px 28px}
.testi-head{text-align:center;margin-bottom:40px}
.testi-head h2{font-family:'Archivo Black';font-size:clamp(28px,3.6vw,44px);letter-spacing:-1.2px;color:var(--azul);text-transform:uppercase}
.testi-head p{color:var(--gris);margin-top:8px;font-size:16px}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi-card{background:#fff;border:1px solid var(--linea);border-radius:18px;padding:28px 24px;display:flex;flex-direction:column;box-shadow:0 14px 34px -22px rgba(23,31,56,.3)}
.testi-card .quote{font-size:44px;color:var(--amarillo);font-family:'Archivo Black';line-height:.6;margin-bottom:12px}
.testi-card .body{font-size:14.5px;line-height:1.65;color:#3a4658;flex:1;margin-bottom:20px}
.testi-card .who{display:flex;align-items:center;gap:12px}
.testi-card .ava{width:46px;height:46px;border-radius:50%;background:var(--azul);display:grid;place-items:center;color:#fff;font-family:'Archivo Black';font-size:16px;flex-shrink:0}
.testi-card .who strong{display:block;font-size:14.5px;font-weight:800;color:var(--navy)}
.testi-card .who small{font-size:12px;color:var(--gris);font-family:'Spline Sans Mono'}
@media(max-width:900px){.testi-grid{grid-template-columns:1fr}}

/* ===== CIERRE ===== */
.cta-band{background:var(--navy);color:#fff;position:relative;z-index:2;overflow:hidden;border-radius:48px;margin:0 20px 44px}
.cta-band .cta-bg{position:absolute;inset:0;z-index:0;background-size:cover;background-position:center;opacity:.18}
.cta-band::after{content:"";position:absolute;inset:0;z-index:1;background:radial-gradient(600px 300px at 85% 20%,rgba(255,210,30,.18),transparent 60%),radial-gradient(500px 300px at 10% 90%,rgba(37,74,165,.4),transparent 60%)}
.cta-in{position:relative;z-index:2;max-width:1240px;margin:0 auto;padding:72px 28px;text-align:center}
.cta-in h2{font-family:'Archivo Black';font-size:clamp(28px,4vw,48px);letter-spacing:-1.4px;line-height:1.04;max-width:20ch;margin:0 auto 16px;text-transform:uppercase}
.cta-in h2 em{font-style:normal;color:var(--amarillo)}
.cta-in p{color:#c3cbde;font-size:17px;max-width:52ch;margin:0 auto 30px}

/* ===== DETALLE DE CURSO ===== */
.crumb{max-width:1240px;margin:0 auto;padding:22px 28px 0;font-family:'Spline Sans Mono';font-size:12.5px;color:var(--gris);position:relative;z-index:2}
.crumb a:hover{color:var(--azul)}
.crumb span{color:var(--tinta);font-weight:600}
.course-hero{max-width:1240px;margin:0 auto;padding:22px 28px 10px;position:relative;z-index:2;display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:start}
.ch-cat{display:inline-flex;align-items:center;gap:8px;font-family:'Spline Sans Mono';font-size:12px;font-weight:700;letter-spacing:1px;color:var(--azul);text-transform:uppercase;margin-bottom:16px}
.ch-cat .tag{background:var(--amarillo);color:var(--navy);padding:4px 11px;border-radius:6px}
h1.ch-title{font-family:'Archivo Black';font-size:clamp(30px,4.2vw,48px);line-height:1.04;letter-spacing:-1.3px;margin-bottom:18px;max-width:18ch;color:var(--navy)}
.ch-desc{font-size:17px;line-height:1.6;color:#3a4658;max-width:60ch;margin-bottom:24px}
.ch-meta{display:flex;gap:26px;flex-wrap:wrap;margin-bottom:26px}
.ch-meta .mi{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--tinta)}
.ch-meta svg{width:18px;height:18px;color:var(--azul)}
.instr{display:flex;align-items:center;gap:13px;padding:16px;background:var(--papel-2);border:1px solid var(--linea);border-radius:13px;max-width:420px}
.instr .ava{width:48px;height:48px;border-radius:50%;background:var(--azul);display:grid;place-items:center;color:#fff;font-family:'Archivo Black';font-size:20px;flex-shrink:0}
.instr .who small{font-family:'Spline Sans Mono';font-size:11px;color:var(--gris);letter-spacing:.5px}
.instr .who strong{display:block;font-size:15.5px;font-weight:700;margin-top:2px}
.buy{position:sticky;top:90px;background:#fff;border:1px solid var(--linea);border-radius:18px;overflow:hidden;box-shadow:0 26px 50px -24px rgba(23,31,56,.4)}
.buy-media{height:190px;background:var(--navy-2);position:relative;display:grid;place-items:center}
.buy-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.buy-media .pat{position:absolute;inset:0;opacity:.16;background-image:radial-gradient(circle,#fff 1.4px,transparent 1.4px);background-size:16px 16px}
.buy-body{padding:22px}
.price-row{display:flex;align-items:baseline;gap:10px;margin-bottom:4px}
.price-now{font-family:'Archivo Black';font-size:36px;letter-spacing:-1px;color:var(--navy)}
.price-note{font-size:13px;color:var(--gris);margin-bottom:18px}
.btn-buy{width:100%;background:var(--amarillo);color:var(--navy);font-size:16px;font-weight:800;padding:15px;border-radius:11px;margin-bottom:10px}
.btn-buy:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,210,30,.5)}
.mp{display:flex;align-items:center;justify-content:center;gap:8px;font-size:12.5px;color:var(--gris);margin-bottom:20px}
.mp b{color:var(--azul)}
.buy-incl{list-style:none;display:flex;flex-direction:column;gap:12px;padding-top:18px;border-top:1px solid var(--linea)}
.buy-incl li{display:flex;align-items:center;gap:11px;font-size:14px;color:#3a4658;font-weight:500}
.buy-incl svg{width:18px;height:18px;color:var(--amarillo-600);flex-shrink:0}
.content{max-width:1240px;margin:44px auto 0;padding:0 28px 40px;position:relative;z-index:2;display:grid;grid-template-columns:1fr 380px;gap:40px}
.block{margin-bottom:38px}
.block h2{font-family:'Archivo Black';font-size:26px;letter-spacing:-.8px;margin-bottom:18px;color:var(--navy)}
.curr-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.curr-head .meta{font-family:'Spline Sans Mono';font-size:12.5px;color:var(--gris)}
.module{background:#fff;border:1px solid var(--linea);border-radius:13px;margin-bottom:12px;overflow:hidden}
.mod-top{display:flex;align-items:center;gap:14px;padding:16px 18px;cursor:pointer;user-select:none}
.mod-top:hover{background:var(--papel-2)}
.mod-n{width:30px;height:30px;border-radius:8px;background:var(--navy);color:var(--amarillo);display:grid;place-items:center;font-family:'Archivo Black';font-size:14px;flex-shrink:0}
.mod-top h4{font-size:16px;font-weight:800;flex:1;color:var(--navy)}
.mod-top .c{font-family:'Spline Sans Mono';font-size:12px;color:var(--gris)}
.mod-top .chev{width:20px;height:20px;color:var(--gris);transition:transform .25s}
.module.open .chev{transform:rotate(180deg)}
.mod-body{max-height:0;overflow:hidden;transition:max-height .35s ease}
.module.open .mod-body{max-height:1600px}
.lesson-row{display:flex;align-items:center;gap:13px;padding:13px 18px 13px 20px;border-top:1px solid var(--linea);font-size:14.5px}
.lesson-row .ic{width:22px;height:22px;color:var(--azul);flex-shrink:0}
.lesson-row .lt{flex:1;font-weight:500}
.lesson-row .dur{font-family:'Spline Sans Mono';font-size:12px;color:var(--gris)}

/* ===== AUTENTICACIÓN ===== */
.auth-wrap{min-height:calc(100vh - 70px);display:grid;place-items:center;padding:40px 20px;position:relative;z-index:2}
.auth-card{background:#fff;border:1px solid var(--linea);border-radius:18px;padding:38px 34px;width:100%;max-width:420px;box-shadow:0 26px 50px -24px rgba(23,31,56,.4)}
.auth-card h1{font-family:'Archivo Black';font-size:28px;letter-spacing:-1px;margin-bottom:6px;color:var(--navy)}
.auth-card .sub{color:var(--gris);font-size:14.5px;margin-bottom:26px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:7px;color:var(--tinta)}
.field input{width:100%;padding:13px 15px;border:1.5px solid var(--linea);border-radius:10px;font-family:'Archivo';font-size:15px;transition:border-color .2s}
.field input:focus{outline:none;border-color:var(--azul)}
.auth-error{background:rgba(200,30,30,.08);border:1px solid rgba(200,30,30,.25);color:#b91c1c;font-size:13.5px;padding:11px 14px;border-radius:9px;margin-bottom:18px}
.btn-full{width:100%;justify-content:center;padding:14px;font-size:15px}

/* ===== PANEL ===== */
.panel{max-width:1240px;margin:0 auto;padding:40px 28px 60px;position:relative;z-index:2}
.panel .section-label{color:var(--azul)}
.panel h1{font-family:'Archivo Black';font-size:34px;letter-spacing:-1.2px;margin-bottom:6px;color:var(--navy)}
.panel .lead{color:var(--gris);margin-bottom:30px}
.prog-card .barwrap{height:8px;background:var(--papel-2);border-radius:100px;overflow:hidden;margin-top:12px}
.prog-card .barwrap .f{height:100%;background:var(--amarillo);border-radius:100px}
.empty{background:#fff;border:1px dashed var(--linea);border-radius:16px;padding:40px;text-align:center;color:var(--gris)}

/* ===== FOOTER ===== */
footer{background:var(--navy);color:#8b96ad;padding:44px 28px;position:relative;z-index:2;text-align:center;font-size:13.5px}
footer .logo{justify-content:center;color:#fff;margin-bottom:14px}
footer .logo-txt{color:#fff}
footer .mono{color:var(--amarillo)}

@media(max-width:960px){.course-hero,.content{grid-template-columns:1fr}.buy{position:relative;top:0;max-width:420px}nav.links{display:none}.programas,.cta-band{border-radius:32px;margin-left:12px;margin-right:12px}}
@media(max-width:520px){.nav-right .btn-ghost{display:none}}
.reveal{opacity:0;transform:translateY(20px);animation:rise .7s cubic-bezier(.2,.8,.2,1) forwards}
@keyframes rise{to{opacity:1;transform:none}}