:root {
  --tinta: #101B2E; --tinta-2: #3A4A66; --ambar: #FFB100; --teal: #0E7C7B;
  --papel: #EEEFE9; --blanco: #FFFFFF; --borde: rgba(16, 27, 46, .12);
  --fondo: var(--papel); --texto: var(--tinta); --suave: var(--tinta-2); --tarjeta: var(--blanco);
}
@media (prefers-color-scheme: dark) {
  :root { --fondo: #0B1322; --texto: #E8EAF0; --suave: #A9B3C6; --tarjeta: #121D31; --borde: rgba(255, 255, 255, .12); }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--fondo); color: var(--texto);
  font: 16px/1.65 "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
header { background: var(--tinta); color: #EEEFE9; }
.barra { max-width: 820px; margin: 0 auto; padding: 18px 16px; display: flex; align-items: center; gap: 12px; }
.barra a { color: inherit; text-decoration: none; font: 600 18px "Space Grotesk", system-ui, sans-serif; }
.logo { width: 30px; height: 30px; }
main { max-width: 820px; margin: 0 auto; padding: 32px 16px 64px; }
h1, h2, h3 { font-family: "Space Grotesk", system-ui, sans-serif; line-height: 1.25; letter-spacing: -.01em; }
h1 { font-size: 30px; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 36px 0 8px; padding-top: 8px; border-top: 1px solid var(--borde); }
h3 { font-size: 17px; margin: 22px 0 6px; }
.meta { color: var(--suave); font-size: 14px; margin: 0 0 24px; }
.aviso {
  border-left: 4px solid var(--ambar); background: rgba(255, 177, 0, .12);
  padding: 12px 16px; border-radius: 6px; font-size: 15px; margin: 0 0 24px;
}
mark.completar { background: rgba(255, 177, 0, .35); color: inherit; padding: 0 4px; border-radius: 3px; font-weight: 500; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 9px 10px; border-bottom: 1px solid var(--borde); }
th { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--suave); font-weight: 500; }
.tabla { overflow-x: auto; }
a { color: var(--teal); }
@media (prefers-color-scheme: dark) { a { color: #4FC3C1; } }
.tarjetas { display: grid; gap: 12px; margin-top: 24px; }
.tarjeta { display: block; padding: 18px 20px; background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 10px; text-decoration: none; color: inherit; }
.tarjeta:hover { border-color: var(--teal); }
.tarjeta strong { display: block; font: 600 18px "Space Grotesk", system-ui, sans-serif; }
.tarjeta span { color: var(--suave); font-size: 15px; }
.casilla { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 10px; padding: 16px 20px; margin: 12px 0; }
footer { max-width: 820px; margin: 0 auto; padding: 0 16px 40px; color: var(--suave); font-size: 13px; }
@media print { header, .aviso { display: none; } body { background: #fff; color: #000; } }