/* Portal del curso · colores institucionales UMNG */
:root{
  --navy:#0a1f5c; --navy-2:#13296e; --gold:#f9be25; --gold-dark:#8c6200; --gold-soft:#fce3a0;
  --red:#d71920; --green:#0e6233;
  --bg:#f5f7fb; --surface:#ffffff; --surface-2:#edf0f6; --ink:#14213d; --muted:#4e5a70; --line:#d6dce8;
  --pg:#336791; --ora:#b33c2b;
  --shadow:0 1px 2px rgba(20,33,61,.06),0 6px 18px rgba(20,33,61,.07);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-family:'Source Sans 3',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:17px;line-height:1.55}
a{color:var(--navy)}
.wrap{max-width:1160px;margin:0 auto;padding:0 16px}

/* Encabezado */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;border-top:6px solid var(--gold);box-shadow:inset 0 3px 0 var(--red);padding:28px 0 0}
.hero .logo{height:64px;width:auto;display:block;margin-bottom:22px}
.hero .kicker{margin:0;font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;color:var(--gold)}
.hero h1{margin:6px 0 6px;font-size:clamp(2rem,5vw,3.2rem);line-height:1.08;font-weight:700}
.hero .sub{margin:0 0 22px;color:#c9d2e6;font-size:1.08rem}
.atajos{display:flex;gap:4px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.atajos a{flex:0 0 auto;color:#e6ebf5;text-decoration:none;font-weight:600;padding:10px 16px;border-radius:10px 10px 0 0}
.atajos a:hover{background:rgba(255,255,255,.08);color:#fff}
.atajos a:first-child{background:var(--bg);color:var(--ink)}

/* Bloques */
.bloque{padding:34px 0 8px;scroll-margin-top:12px}
.bloque>h2{font-size:1.7rem;margin:0 0 6px;display:flex;align-items:center;gap:12px}
.bloque>h2::before{content:"";width:6px;height:1.1em;background:var(--gold);border-radius:3px}
.lead{color:var(--muted);max-width:860px;margin:0 0 18px;font-size:1.05rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px 22px;box-shadow:var(--shadow);margin:0 0 16px}
.card h3{margin:0 0 8px;font-size:1.2rem}
.card h3:not(:first-child){margin-top:18px}
.card p{margin:6px 0}

/* Sesiones */
.sesiones{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.sesion{background:var(--surface);border:1px solid var(--line);border-top:6px solid var(--navy);border-radius:16px;padding:18px 20px 20px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.sesion .num{margin:0;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--gold-dark)}
.sesion h3{margin:4px 0 6px;font-size:1.22rem;line-height:1.25}
.sesion p{margin:0 0 14px;color:var(--muted)}
.sesion .botones{margin-top:auto}
.sesion.eval{border-top-color:var(--red);background:var(--surface-2);box-shadow:none}
.botones{display:flex;flex-wrap:wrap;gap:8px}
.btn{display:inline-flex;align-items:center;font:inherit;font-size:.92rem;font-weight:600;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:7px 14px}
.btn:hover{border-color:var(--navy)}
.btn.primario{background:var(--navy);border-color:var(--navy);color:#fff}
.btn.primario:hover{background:var(--navy-2)}
.btn.sql{background:var(--surface-2);font-family:'JetBrains Mono',ui-monospace,Consolas,monospace;font-size:.8rem}
.btn[hidden]{display:none}

/* El curso */
.dos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.notas{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:6px}
.notas>div{background:var(--surface-2);border-radius:12px;padding:12px 14px}
.notas>div.fuerte{background:var(--navy);color:#fff}
.notas .pct{font-size:2rem;font-weight:700;line-height:1;margin:0 0 8px;color:var(--navy)}
.notas .fuerte .pct{color:var(--gold)}
.notas p{margin:0;font-size:.95rem}
.barra-notas{display:flex;height:10px;border-radius:999px;overflow:hidden;margin-top:14px;gap:3px}
.barra-notas span:nth-child(1){background:var(--navy-2)}
.barra-notas span:nth-child(2){background:var(--gold)}
.barra-notas span:nth-child(3){background:var(--red)}
.temas{list-style:none;padding:0;margin:8px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px}
.temas li{display:flex;gap:12px;align-items:baseline;padding:6px 0;border-bottom:1px solid var(--line)}
.temas span{font-weight:700;color:var(--gold-dark);font-variant-numeric:tabular-nums}
.mas{margin-top:14px}
.mas a{font-weight:600}

/* Proyecto y docente */
.proyecto{display:flex;gap:24px;align-items:center}
.proyecto>div{flex:1}
.proyecto .botones{margin-top:14px}
.escudo-proyecto{width:120px;height:auto;flex:none}
.docente{display:flex;gap:24px;align-items:flex-start}
.docente>img{width:260px;height:174px;object-fit:cover;border-radius:12px;flex:none}
.formacion{margin:4px 0 10px;padding-left:1.1em}
.formacion li{margin:4px 0;color:var(--muted)}
.formacion b{color:var(--ink)}
.contacto a{font-weight:600}

/* Pie */
.pie{margin-top:36px;background:var(--navy);color:#c9d2e6;border-top:4px solid var(--gold)}
.pie .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;padding-bottom:24px}
.pie img{height:46px;width:auto}
.pie p{margin:0}

@media (max-width:900px){
  .sesiones{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  body{font-size:16px}
  .sesiones,.dos,.temas,.notas{grid-template-columns:minmax(0,1fr)}
  .hero .logo{height:52px}
  .proyecto{flex-direction:column;align-items:flex-start}
  .escudo-proyecto{display:none}
  .docente{flex-direction:column}
  .docente>img{width:100%;height:auto;aspect-ratio:3/2}
}