:root{
    --ink:#0e2a52;--navy:#123a73;--paper:#ffffff;--paper-deep:#eef3fa;
    --accent:#c8102e;--accent-deep:#9c0c23;--blue:#1d4e9c;--muted:#5c6b82;
    --line:rgba(14,42,82,.14);
    --display:"Fraunces",Georgia,serif;--body:"Newsreader",Georgia,serif;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.025;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
  .wrap{max-width:1180px;margin:0 auto;padding:0 40px;position:relative;z-index:2}

  .flagstrip{height:4px;background:linear-gradient(90deg,var(--accent) 0 38%,#fff 38% 62%,var(--blue) 62% 100%)}
  header.topbar{border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px)}
  .topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:78px}
  .brand{display:flex;align-items:baseline;gap:10px;font-family:var(--display);font-weight:600;font-size:1.4rem;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}
  .brand .full{color:var(--muted);font-weight:400;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase}
  nav.main ul{display:flex;gap:4px;list-style:none;align-items:center}
  
  nav.main a:hover{color:var(--accent)}
  nav.main li.active a{color:var(--accent)}
  @media(max-width:1080px){nav.main{display:none}}

  /* ---------- hero ---------- */
  .hero{padding:70px 0 60px;border-bottom:1px solid var(--line);background:
    radial-gradient(120% 90% at 85% -15%,rgba(29,78,156,.1),transparent 55%),
    radial-gradient(80% 70% at 0% 120%,rgba(200,16,46,.06),transparent 60%)}
  .kicker{font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:500;margin-bottom:18px;display:flex;align-items:center;gap:14px}
  .kicker::before{content:"";width:42px;height:3px;background:linear-gradient(90deg,var(--accent) 0 50%,var(--blue) 50% 100%)}
  .hero h1{font-family:var(--display);font-weight:500;font-size:clamp(2.4rem,6vw,4.6rem);line-height:.98;letter-spacing:-.028em;max-width:16ch}
  .hero h1 em{font-style:italic;color:var(--accent)}
  .hero .course{margin-top:22px;display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-style:italic;font-size:1.25rem;color:var(--navy)}
  .hero .badges{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
  .hbadge{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:#34465e;border:1px solid var(--line);background:#fff;padding:9px 16px;border-radius:30px}
  .hbadge svg{color:var(--accent)}

  /* ---------- presentación curso ---------- */
  .about{padding:64px 0;border-bottom:1px solid var(--line)}
  .about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:start}
  @media(max-width:880px){.about-grid{grid-template-columns:1fr;gap:36px}}
  .about p{font-size:1.1rem;color:#34465e;margin-bottom:16px;line-height:1.72;max-width:62ch}
  .about p strong{color:var(--ink)}
  .about .invite{margin-top:8px;font-family:var(--display);font-style:italic;font-size:1.25rem;color:var(--accent);line-height:1.4}

  .learn{border:1px solid var(--line);border-radius:14px;padding:28px 30px;background:var(--paper-deep)}
  .learn h3{font-family:var(--display);font-weight:600;font-size:1.2rem;margin-bottom:18px}
  .learn ul{list-style:none;display:flex;flex-direction:column;gap:14px}
  .learn li{display:flex;gap:12px;align-items:flex-start;font-size:1rem;color:#34465e;line-height:1.45}
  .learn li .tick{color:var(--blue);flex-shrink:0;margin-top:.2em}

  /* ---------- inscripción ---------- */
  .enroll{padding:64px 0 90px}
  .enroll-head{margin-bottom:14px}
  .enroll-head h2{font-family:var(--display);font-weight:500;font-size:clamp(1.9rem,4vw,2.7rem);letter-spacing:-.02em}
  .enroll-head p{color:#34465e;margin-top:10px;max-width:64ch}
  .enroll-head .login{color:var(--blue);text-decoration:none;border-bottom:1px solid rgba(29,78,156,.3)}
  .enroll-head .login:hover{color:var(--accent);border-color:var(--accent)}

  .form-card{border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 30px 70px -34px rgba(14,42,82,.5);overflow:hidden;margin-top:30px}
  .form-top{background:var(--ink);color:#fff;padding:24px 34px;display:flex;align-items:center;gap:14px}
  .form-top svg{color:#fff;opacity:.9}
  .form-top h3{font-family:var(--display);font-weight:500;font-size:1.45rem;letter-spacing:-.01em}
  form{padding:34px}
  .row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  @media(max-width:560px){.row{grid-template-columns:1fr}}
  .field{margin-bottom:20px;display:flex;flex-direction:column}
  .field.full{grid-column:1 / -1}
  label{font-size:.82rem;letter-spacing:.03em;color:var(--ink);font-weight:500;margin-bottom:8px}
  label .req{color:var(--accent);margin-left:3px}
  .control{font-family:var(--body);font-size:1rem;color:var(--ink);border:1px solid var(--line);border-radius:9px;padding:13px 15px;background:#fff;transition:border-color .2s,box-shadow .2s;width:100%}
  .control::placeholder{color:#9aa6b8}
  .control:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,156,.12)}

  .accept{display:flex;gap:11px;align-items:flex-start;margin:6px 0 24px;font-size:.95rem;color:#34465e}
  .accept input{margin-top:.35em;width:18px;height:18px;accent-color:var(--accent);flex-shrink:0}
  .accept a{color:var(--blue);text-decoration:none;border-bottom:1px solid rgba(29,78,156,.3);cursor:pointer}
  .accept a:hover{color:var(--accent);border-color:var(--accent)}

  .submit{font-family:var(--body);font-size:.9rem;letter-spacing:.08em;text-transform:uppercase;background:var(--accent);color:#fff;border:none;padding:16px 40px;border-radius:10px;cursor:pointer;display:inline-flex;align-items:center;gap:12px;box-shadow:0 14px 30px -14px rgba(200,16,46,.7);transition:.22s}
  .submit:hover{transform:translateY(-2px);box-shadow:0 20px 38px -14px rgba(200,16,46,.8)}
  .submit svg{transition:transform .2s}
  .submit:hover svg{transform:translateX(4px)}

  /* ---------- modal políticas ---------- */
  .modal-bg{position:fixed;inset:0;background:rgba(14,42,82,.55);backdrop-filter:blur(3px);z-index:100;display:none;align-items:center;justify-content:center;padding:24px}
  .modal-bg.open{display:flex}
  .modal{background:#fff;border-radius:16px;max-width:760px;width:100%;max-height:88vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 40px 90px -30px rgba(14,42,82,.6)}
  .modal-top{padding:24px 30px;border-bottom:1px solid var(--line);display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
  .modal-top h3{font-family:var(--display);font-weight:600;font-size:1.4rem;line-height:1.15;letter-spacing:-.01em}
  .modal-top p{font-size:.85rem;color:var(--muted);margin-top:4px}
  .modal-close{background:none;border:1px solid var(--line);color:var(--ink);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:1.1rem;flex-shrink:0;transition:.2s}
  .modal-close:hover{background:var(--accent);border-color:var(--accent);color:#fff}
  .modal-body{padding:28px 30px;overflow-y:auto}
  .modal-body h4{font-family:var(--display);font-weight:600;font-size:1.15rem;color:var(--ink);margin:24px 0 14px;display:flex;align-items:center;gap:10px}
  .modal-body h4:first-child{margin-top:0}
  .modal-body h4 .pill{font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;background:var(--accent);color:#fff;padding:4px 10px;border-radius:20px}
  .modal-body ol{list-style:none;counter-reset:p;display:flex;flex-direction:column;gap:14px}
  .modal-body li{counter-increment:p;display:flex;gap:14px;font-size:.98rem;color:#34465e;line-height:1.55}
  .modal-body li::before{content:counter(p);font-family:var(--display);font-weight:600;color:var(--accent);background:var(--paper-deep);border:1px solid var(--line);width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.85rem}
  .modal-body li b{color:var(--ink)}
  .modal-body .closing{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-style:italic;color:var(--navy);font-family:var(--display);font-size:1.05rem;line-height:1.45}
  .modal-foot{padding:18px 30px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:12px;background:var(--paper-deep)}
  .modal-foot button{font-family:var(--body);font-size:.82rem;letter-spacing:.05em;text-transform:uppercase;padding:11px 24px;border-radius:8px;cursor:pointer;border:none}
  .mf-accept{background:var(--accent);color:#fff}
  .mf-close{background:#fff;border:1px solid var(--line);color:var(--ink)}

  footer{background:var(--paper-deep);border-top:1px solid var(--line);padding:46px 0}
  footer .wrap{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px}
  footer .brand{font-size:1.1rem}
  .motto{font-family:var(--display);font-style:italic;color:var(--accent);font-size:1rem}
  footer small{color:var(--muted);font-size:.8rem}