/* ============================================================================
   Landing pública de NotasEDU.

   PORTADO 1:1 DESDE ORDENES/notasedu-landing-mockup.html. El mockup es la
   especificación, no una sugerencia: si algo aquí difiere, lo que está mal es
   esto. Se extrajo el bloque <style> tal cual en vez de reescribirlo a mano,
   precisamente para que no se cuelen diferencias.

   POR QUÉ VIVE EN UN .css Y NO EN UN <style> DENTRO DE LA VISTA: en Razor, la
   arroba es sintaxis. Un @media o un @keyframes dentro de <style> hay que
   escribirlos @@media y @@keyframes, y olvidarlo no da un error de compilación
   sino CSS roto en silencio — con este archivo serían las 3 media queries y los
   2 keyframes del hero, es decir, todo el diseño responsive. Es una trampa que
   este proyecto ya tiene documentada en CLAUDE.md. Fuera de Razor no existe.

   Y de paso se cachea aparte del HTML.
   ========================================================================== */
:root{
  --blue:#1E50A0; --blue-bright:#2563EB; --navy:#14346B; --navy-deep:#0E2650;
  --gold:#F2A81D; --gold-soft:#FBBF24;
  --ink:#15233D; --body:#516079; --muted:#7E8CA3;
  --bg:#FFFFFF; --bg-soft:#F4F8FD; --bg-blue:#EEF4FC; --line:#E5ECF6;
  --radius:18px; --shadow:0 18px 50px -20px rgba(20,52,107,.28);
  --shadow-sm:0 8px 24px -12px rgba(20,52,107,.22);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--body);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,.logo-word{font-family:'Poppins',sans-serif;color:var(--ink);line-height:1.15;letter-spacing:-.02em}
a{text-decoration:none;color:inherit}
img,svg{display:block}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--blue);background:var(--bg-blue);padding:7px 14px;border-radius:999px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:600;font-size:15px;padding:13px 22px;border-radius:12px;cursor:pointer;border:1.5px solid transparent;transition:.18s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-bright));color:#fff;box-shadow:0 10px 22px -10px rgba(37,99,235,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 28px -10px rgba(37,99,235,.7)}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-soft));color:#3a2b04;box-shadow:0 10px 22px -10px rgba(242,168,29,.65)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 30px -10px rgba(242,168,29,.75)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-outline{background:transparent;color:var(--navy);border-color:#cdd9ec}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}

/* HEADER */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{border-color:var(--line);box-shadow:0 6px 24px -18px rgba(20,52,107,.5)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:11px}
.logo svg{width:40px;height:40px}
.logo-word{font-size:22px;font-weight:800}
.logo-word .n{color:var(--navy)}.logo-word .e{color:var(--gold)}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{font-size:15px;font-weight:500;color:var(--body);transition:.15s}
.nav-links a:hover{color:var(--blue)}
.nav-cta{display:flex;align-items:center;gap:12px}
/* ÚNICA desviación del mockup, y es deliberada: el botón medía 33,5 px de alto
   (8+8 de padding, 3 barras de 2,5 y 2 huecos de 5) y el mínimo táctil exigido son
   44. Se comprobó midiéndolo en el navegador, no a ojo. Se agranda el ÁREA, no las
   barras: visualmente es idéntico al mockup. */
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px;min-width:44px;min-height:44px;align-items:center;justify-content:center}
.nav-toggle span{width:24px;height:2.5px;background:var(--navy);border-radius:2px;transition:.25s}
.mobile-menu{display:none}

/* HERO */
.hero{position:relative;overflow:hidden;padding:70px 0 80px;background:
  radial-gradient(1100px 500px at 80% -10%, #E7F0FE 0%, rgba(231,240,254,0) 60%),
  radial-gradient(800px 500px at 0% 20%, #FEF6E4 0%, rgba(254,246,228,0) 55%),
  #fff}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,4.4vw,56px);font-weight:800;margin:20px 0 18px}
.hero h1 .hl{color:var(--blue);background:linear-gradient(transparent 76%, rgba(242,168,29,.30) 0);-webkit-box-decoration-break:clone;box-decoration-break:clone;padding:0 3px;border-radius:4px}
.hero p.lead{font-size:19px;max-width:540px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{display:flex;align-items:center;gap:10px;margin-top:26px;font-size:14px;color:var(--muted);font-weight:500}
.hero-trust .dot{width:8px;height:8px;border-radius:50%;background:#22C55E;box-shadow:0 0 0 4px rgba(34,197,94,.15)}

/* HERO MOCKUP */
.mock{position:relative}
@keyframes floaty{0%,100%{transform:translateY(0) rotate(.5deg)}50%{transform:translateY(-14px) rotate(.5deg)}}
@keyframes floatb{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
.mock-window{background:#fff;border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--line);overflow:hidden;transform:rotate(.5deg);animation:floaty 6s ease-in-out infinite}
.mock-bar{display:flex;align-items:center;gap:7px;padding:12px 14px;background:#F7FAFE;border-bottom:1px solid var(--line)}
.mock-bar i{width:11px;height:11px;border-radius:50%;background:#D6DEEA;display:block}
.mock-bar i:nth-child(1){background:#FF6058}.mock-bar i:nth-child(2){background:#FFBE2F}.mock-bar i:nth-child(3){background:#28C840}
.mock-bar .url{margin-left:10px;font-size:11px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:6px;padding:4px 12px;font-family:Inter}
.mock-body{display:grid;grid-template-columns:64px 1fr;min-height:300px}
.mock-side{background:var(--navy);padding:18px 0;display:flex;flex-direction:column;align-items:center;gap:18px}
.mock-side .s-logo{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--gold),var(--gold-soft))}
.mock-side .s-i{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.12)}
.mock-side .s-i.on{background:rgba(255,255,255,.9)}
.mock-main{padding:20px}
.mock-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.mock-h .t{width:120px;height:13px;border-radius:5px;background:#E7EDF6}
.mock-h .a{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-bright))}
.mock-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.mock-stat{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:13px}
.mock-stat b{font-family:Poppins;font-size:22px;color:var(--ink);display:block}
.mock-stat span{font-size:10px;color:var(--muted)}
.mock-stat.g b{color:var(--gold)}.mock-stat.b b{color:var(--blue)}
.mock-chart{background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;align-items:flex-end;gap:10px;height:120px}
.mock-chart .bar{flex:1;border-radius:6px 6px 3px 3px;background:linear-gradient(var(--blue),var(--blue-bright));opacity:.85}
.mock-chart .bar.g{background:linear-gradient(var(--gold),var(--gold-soft))}
.badge-float{position:absolute;background:#fff;border-radius:14px;box-shadow:var(--shadow-sm);border:1px solid var(--line);padding:12px 15px;display:flex;align-items:center;gap:11px;font-size:13px;font-weight:600;color:var(--ink)}
.badge-float .ic{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff}
.badge-float.b1{top:-18px;left:-26px;animation:floatb 4.5s ease-in-out infinite}
.badge-float.b2{bottom:-20px;right:-18px;animation:floatb 5.2s ease-in-out infinite .6s}
@media(prefers-reduced-motion:reduce){.mock-window,.badge-float{animation:none}}

/* SECTIONS */
section{padding:86px 0}
.sec-head{text-align:center;max-width:660px;margin:0 auto 54px}
.sec-head h2{font-size:clamp(28px,3.4vw,40px);font-weight:800;margin:14px 0 14px}
.sec-head p{font-size:18px}
.soft{background:var(--bg-soft)}

/* ROLES */
.roles{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.role{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.2s}
.role:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.role .ic{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;color:#fff}
.role h3{font-size:19px;margin-bottom:12px}
.role ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.role li{position:relative;padding-left:24px;font-size:14.5px}
.role li:before{content:"";position:absolute;left:0;top:8px;width:14px;height:14px;border-radius:50%;background:var(--bg-blue);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%232563EB' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center}

/* STEPS */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;counter-reset:s}
.step{position:relative;padding:32px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:-20px;left:26px;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;font-family:Poppins;font-weight:700;font-size:20px;display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.step h3{margin:20px 0 10px;font-size:19px}

/* FEATURES */
.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.f{display:flex;gap:15px;padding:22px;border-radius:14px;transition:.18s}
.f:hover{background:var(--bg-soft)}
.f .ic{flex-shrink:0;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--bg-blue);color:var(--blue)}
.f h4{font-size:16.5px;margin-bottom:5px}
.f p{font-size:14px}

/* SECURITY */
.sec-security{background:linear-gradient(135deg,var(--navy),var(--navy-deep));color:#cfe0f5}
.sec-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;margin-bottom:50px}
.sec-security h2{color:#fff}
.sec-security .eyebrow{background:rgba(255,255,255,.1);color:var(--gold-soft)}
.sec-security .lead{font-size:18px;margin:16px 0 0}
.sec-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sec-item{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:22px}
.sec-item .ic{flex-shrink:0;width:42px;height:42px;border-radius:11px;display:grid;place-items:center;background:rgba(242,168,29,.16);color:var(--gold-soft)}
.sec-item b{color:#fff;font-family:Poppins;display:block;margin-bottom:4px;font-size:15px}
.sec-item span{font-size:13.5px;line-height:1.5}
.shield-wrap{display:grid;place-items:center}
.shield-wrap svg{width:200px;height:200px;filter:drop-shadow(0 20px 40px rgba(0,0,0,.35))}

/* TESTIMONIAL */
.quote{max-width:820px;margin:0 auto;text-align:center}
.quote .mark{font-family:Poppins;font-size:64px;color:var(--gold);line-height:.6;height:34px}
.quote p{font-size:clamp(20px,2.6vw,27px);font-family:Poppins;font-weight:600;color:var(--ink);line-height:1.4;margin-bottom:26px}
.quote .who{display:flex;align-items:center;justify-content:center;gap:13px}
.quote .av{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-bright));color:#fff;display:grid;place-items:center;font-family:Poppins;font-weight:700}
.quote .who b{color:var(--ink)}.quote .who span{font-size:14px;color:var(--muted);display:block}
.placeholder-tag{display:inline-block;margin-top:22px;font-size:12px;color:var(--muted);background:var(--bg-soft);border:1px dashed #c9d5e6;padding:5px 12px;border-radius:8px}

/* FAQ */
.faq{max-width:800px;margin:0 auto;display:grid;gap:14px}
details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 22px;transition:.2s}
details[open]{box-shadow:var(--shadow-sm);border-color:transparent}
summary{list-style:none;cursor:pointer;font-family:Poppins;font-weight:600;color:var(--ink);font-size:16.5px;padding:18px 0;display:flex;justify-content:space-between;align-items:center;gap:16px}
summary::-webkit-details-marker{display:none}
summary .pl{flex-shrink:0;width:26px;height:26px;border-radius:8px;background:var(--bg-blue);color:var(--blue);display:grid;place-items:center;font-size:20px;transition:.2s}
details[open] summary .pl{background:var(--blue);color:#fff;transform:rotate(45deg)}
details p{padding:0 0 20px;font-size:15px}

/* CTA BAND */
.cta-band{text-align:center;background:
  radial-gradient(600px 300px at 50% 0%, rgba(242,168,29,.12), transparent 70%),
  linear-gradient(135deg,var(--blue),var(--blue-bright))}
.cta-band h2{color:#fff;font-size:clamp(28px,3.6vw,42px)}
.cta-band p{color:#dbe7fb;font-size:19px;max-width:560px;margin:16px auto 30px}
.cta-band .hero-cta{justify-content:center}

/* FOOTER */
footer{background:var(--navy-deep);color:#9db2d3;padding:60px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.foot-brand .logo-word .n{color:#fff}
.foot-brand p{margin-top:16px;font-size:14.5px;max-width:300px}
.foot-ig{display:inline-flex;align-items:center;gap:10px;margin-top:20px;color:#fff;font-weight:600;background:rgba(255,255,255,.08);padding:10px 16px;border-radius:12px;transition:.18s}
.foot-ig:hover{background:linear-gradient(135deg,#F58529,#DD2A7B)}
.foot-col h5{color:#fff;font-family:Poppins;font-size:15px;margin-bottom:16px}
.foot-col a{display:block;font-size:14.5px;padding:6px 0;transition:.15s}
.foot-col a:hover{color:#fff}
.foot-bottom{padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13.5px;color:#7e93b5}

/* RESPONSIVE */
@media(max-width:940px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .mock{max-width:460px;margin:0 auto}
  .sec-intro{grid-template-columns:1fr;gap:36px}
  .sec-list{grid-template-columns:1fr 1fr}
  .roles{grid-template-columns:1fr 1fr}
  .feat{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .mobile-menu{display:block;position:fixed;inset:72px 0 0;background:#fff;z-index:49;padding:24px;transform:translateX(100%);transition:.3s;overflow-y:auto}
  .mobile-menu.open{transform:translateX(0)}
  .mobile-menu a.m-link{display:block;font-family:Poppins;font-weight:600;font-size:18px;color:var(--ink);padding:16px 0;border-bottom:1px solid var(--line)}
  .mobile-menu .m-cta{display:flex;flex-direction:column;gap:12px;margin-top:24px}
  .mobile-menu .btn{width:100%}

  /* Mínimo táctil de 44 px donde se toca con el dedo. Medido en el navegador: los
     enlaces del pie salían a 35 px y los logos a 38-40. No se tocan los tamaños de
     letra ni los colores, solo el área que recibe el toque.

     Va DENTRO de este breakpoint a propósito: por encima de 940 se navega con ratón
     y agrandar ahí la barra superior cambiaría la altura de la cabecera respecto al
     mockup sin que nadie lo gane. */
  .foot-col a{padding:11px 0}
  .logo{min-height:44px}
}
@media(max-width:720px){
  section{padding:64px 0}
  .wrap{padding:0 18px}
  .roles,.feat,.foot-grid,.sec-list{grid-template-columns:1fr}
  .badge-float.b1{left:6px}
  .badge-float.b2{right:6px}
  .badge-float{font-size:12px;padding:10px 12px}
  .foot-bottom{flex-direction:column}
}