/* FOSSHLab — hoja de estilos del sitio */
@font-face { font-family: "IBM Plex Sans"; font-weight: 100 700; font-display: swap; src: url(/fuentes/ibm-plex-sans.woff2) format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-weight: 500; font-display: swap; src: url(/fuentes/ibm-plex-mono-500.woff2) format("woff2"); }

:root {
  /* Oscuros: presentación y navegación */
  --noche: #0b1220;
  --noche-2: #111a2c;
  --noche-borde: #23304a;
  --claro: #e8edf5;
  --claro-2: #a3afc3;
  /* Lectura */
  --blanco: #ffffff;
  --gris-fondo: #f3f5f9;
  --tinta: #0f172a;
  --gris: #4a5568;
  --linea: #dfe4ec;
  /* Acento único */
  --acento: #2dd4bf;
  --acento-osc: #0f766e;
  --acento-suave: #e6faf7;
  --ancho: 1160px;
  --radio: 10px;
  --texto: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { font-family: var(--texto); font-size: 17.5px; line-height: 1.65; color: var(--tinta); background: var(--blanco); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--acento-osc); }
:focus-visible { outline: 3px solid var(--acento); outline-offset: 3px; border-radius: 4px; }
.saltar { position: absolute; left: -9999px; top: 0; background: var(--acento); color: var(--noche); padding: 10px 16px; z-index: 100; font-weight: 600; }
.saltar:focus { left: 16px; top: 8px; }
.contenedor { max-width: var(--ancho); margin: 0 auto; padding: 0 28px; }

h1, h2, h3 { font-weight: 600; line-height: 1.15; letter-spacing: -0.02em; color: inherit; }
h1 { font-size: clamp(2.3rem, 5vw, 3.7rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 0.7rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.45rem; letter-spacing: -0.01em; }
.etiqueta { font-family: var(--mono); font-size: 0.8rem; font-weight: 500; letter-spacing: 0.06em; text-transform: uppercase; color: var(--acento-osc); margin-bottom: 0.9rem; display: block; }
.etiqueta::before { content: "// "; opacity: 0.6; }
.oscuro .etiqueta, .portada .etiqueta, .cabecera-pagina .etiqueta { color: var(--acento); }
.bajada { font-size: 1.15rem; color: var(--gris); max-width: 680px; }
.nota { font-size: 0.95rem; color: var(--gris); margin-top: 22px; max-width: 760px; }

/* Encabezado */
.encabezado { position: sticky; top: 0; z-index: 50; background: rgba(11, 18, 32, 0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--noche-borde); color: var(--claro); }
.encabezado .contenedor { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 20px; }
.marca img { height: 40px; width: auto; }
.nav { display: flex; align-items: center; gap: 28px; }
.menu { display: flex; gap: 24px; list-style: none; align-items: center; }
.menu a, .menu button { text-decoration: none; font: inherit; font-size: 0.97rem; font-weight: 500; color: var(--claro-2); background: none; border: 0; cursor: pointer; padding: 4px 0; }
.menu a:hover, .menu button:hover, .menu [aria-current="page"] { color: var(--claro); }
.menu [aria-current="page"] { box-shadow: 0 2px 0 var(--acento); }
.menu .secundario-nav { font-size: 0.9rem; }
.separador { width: 1px; height: 20px; background: var(--noche-borde); }
.desplegable { position: relative; }
.desplegable ul { display: none; position: absolute; top: calc(100% + 16px); left: -18px; min-width: 270px; list-style: none; background: var(--noche-2); border: 1px solid var(--noche-borde); border-radius: var(--radio); padding: 8px; box-shadow: 0 18px 40px rgba(0,0,0,0.35); }
.desplegable ul a { display: block; padding: 9px 12px; border-radius: 6px; }
.desplegable ul a:hover { background: rgba(255,255,255,0.05); }
.desplegable.abierto ul, .desplegable:focus-within ul { display: block; }
.boton-menu { display: none; background: none; border: 1px solid var(--noche-borde); border-radius: 8px; color: var(--claro); font-size: 1.3rem; width: 42px; height: 42px; cursor: pointer; }

/* Botones */
.boton { display: inline-flex; align-items: center; gap: 8px; font: inherit; font-weight: 600; font-size: 1rem; text-decoration: none; padding: 12px 22px; border-radius: 8px; border: 1px solid var(--acento); background: var(--acento); color: var(--noche); cursor: pointer; transition: transform 0.15s, box-shadow 0.15s, background 0.15s; }
.boton:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(45, 212, 191, 0.28); }
.boton.secundario { background: transparent; color: var(--claro); border-color: var(--noche-borde); }
.boton.secundario:hover { border-color: var(--acento); box-shadow: none; }
.boton.borde { background: transparent; color: var(--tinta); border-color: var(--linea); }
.boton.borde:hover { border-color: var(--acento-osc); box-shadow: none; }
.boton.chico { padding: 9px 16px; font-size: 0.93rem; }
.acciones { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }

/* Portada y cabeceras */
.portada, .cabecera-pagina { background: var(--noche); color: var(--claro); position: relative; overflow: hidden; }
.portada { padding: 120px 0 112px; }
.cabecera-pagina { padding: 84px 0 76px; }
.portada::before, .cabecera-pagina::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(var(--noche-borde) 1px, transparent 1px), linear-gradient(90deg, var(--noche-borde) 1px, transparent 1px); background-size: 56px 56px; opacity: 0.45; -webkit-mask-image: radial-gradient(ellipse 70% 80% at 80% 0%, #000 20%, transparent 75%); mask-image: radial-gradient(ellipse 70% 80% at 80% 0%, #000 20%, transparent 75%); pointer-events: none; }
.portada::after { content: ""; position: absolute; width: 640px; height: 640px; right: -160px; top: -260px; background: radial-gradient(circle, rgba(45, 212, 191, 0.22), transparent 65%); pointer-events: none; }
.portada .contenedor, .cabecera-pagina .contenedor { position: relative; z-index: 1; }
.portada h1 { max-width: 860px; }
.portada h1 span { color: var(--acento); }
.portada .bajada, .cabecera-pagina .bajada { font-size: 1.2rem; max-width: 660px; margin-top: 1.4rem; color: var(--claro-2); }
.cabecera-pagina h1 { font-size: clamp(2rem, 4.2vw, 3rem); max-width: 860px; }
.migas { font-family: var(--mono); font-size: 0.82rem; color: var(--claro-2); margin-bottom: 18px; }
.migas a { color: var(--claro-2); text-decoration: none; } .migas a:hover { color: var(--acento); }

/* Secciones */
.seccion { padding: 96px 0; }
.seccion.gris { background: var(--gris-fondo); }
.seccion.oscuro { background: var(--noche); color: var(--claro); }
.seccion.oscuro .bajada, .seccion.oscuro p { color: var(--claro-2); }
.encabezado-seccion { margin-bottom: 48px; max-width: 720px; }

.grilla { display: grid; gap: 22px; }
.grilla.dos { grid-template-columns: repeat(2, 1fr); }
.grilla.tres { grid-template-columns: repeat(3, 1fr); }
.grilla.cuatro { grid-template-columns: repeat(4, 1fr); }
.partida { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }

.tarjeta { background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio); padding: 28px; display: flex; flex-direction: column; transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s; }
.seccion:not(.gris) .tarjeta { background: var(--gris-fondo); border-color: transparent; }
a.tarjeta { text-decoration: none; color: inherit; }
a.tarjeta:hover, .tarjeta.area:hover { border-color: var(--acento-osc); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08); }
.tarjeta p { color: var(--gris); font-size: 0.98rem; }
.tarjeta .mas { margin-top: auto; padding-top: 22px; font-weight: 600; text-decoration: none; color: var(--acento-osc); font-size: 0.97rem; }
.tarjeta .mas::after { content: " →"; }
.icono { width: 44px; height: 44px; padding: 10px; border-radius: 10px; background: var(--acento-suave); color: var(--acento-osc); margin-bottom: 20px; display: block; }
.estado { align-self: flex-start; font-family: var(--mono); font-size: 0.72rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; padding: 4px 9px; border-radius: 999px; margin-bottom: 12px; display: inline-block; background: #fff4d6; color: #8a5a00; }

/* Necesidades */
.necesidad { display: flex; justify-content: space-between; align-items: center; gap: 18px; text-decoration: none; padding: 24px 26px; border-radius: var(--radio); background: var(--noche-2); border: 1px solid var(--noche-borde); color: var(--claro); transition: border-color 0.15s, background 0.15s; }
.necesidad:hover { border-color: var(--acento); background: #14203a; }
.necesidad strong { font-weight: 500; font-size: 1.1rem; line-height: 1.4; }
.necesidad span { white-space: nowrap; font-family: var(--mono); font-size: 0.82rem; color: var(--acento); }

/* Pasos */
.pasos { counter-reset: paso; list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--linea); }
.pasos li { counter-increment: paso; padding: 24px 22px 0 0; position: relative; }
.pasos li::before { content: counter(paso, decimal-leading-zero); font-family: var(--mono); font-size: 0.85rem; color: var(--acento-osc); display: block; margin-bottom: 12px; }
.pasos li::after { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--acento-osc); }
.pasos p { font-size: 1rem; color: var(--tinta); }

/* Tablas */
.tabla-envoltura { overflow-x: auto; border: 1px solid var(--linea); border-radius: var(--radio); }
.tabla { width: 100%; border-collapse: collapse; background: var(--blanco); font-size: 0.98rem; }
.tabla th, .tabla td { text-align: left; padding: 16px 20px; border-bottom: 1px solid var(--linea); vertical-align: top; }
.tabla tr:last-child td { border-bottom: 0; }
.tabla th { font-family: var(--mono); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.78rem; color: var(--gris); background: var(--gris-fondo); }
.tabla td:first-child { font-weight: 600; }

/* Listas */
.lista-temas { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 36px; }
.lista-temas li { padding: 14px 0 14px 30px; border-bottom: 1px solid var(--linea); position: relative; }
.lista-temas li::before { content: ""; position: absolute; left: 2px; top: 22px; width: 12px; height: 12px; border-radius: 3px; border: 2px solid var(--acento-osc); }
.oscuro .lista-temas li { border-color: var(--noche-borde); }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { padding: 8px 14px; border-radius: 999px; background: var(--acento-suave); color: var(--acento-osc); font-weight: 500; font-size: 0.95rem; }
.texto { max-width: 760px; }
.texto p + p { margin-top: 1rem; }
.aviso { background: var(--gris-fondo); border: 1px solid var(--linea); border-left: 3px solid var(--acento-osc); padding: 20px 24px; border-radius: 0 var(--radio) var(--radio) 0; margin-top: 28px; max-width: 820px; color: var(--gris); }
.seccion.gris .aviso { background: var(--blanco); }

/* Preguntas frecuentes */
.faq { max-width: 820px; border-top: 1px solid var(--linea); }
.faq details { border-bottom: 1px solid var(--linea); padding: 20px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.06rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--acento-osc); font-size: 1.2rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq summary::-webkit-details-marker { display: none; }
.faq details p { margin-top: 12px; color: var(--gris); }

/* Formulario */
.formulario { display: grid; gap: 20px; background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio); padding: 32px; }
.formulario .fila { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.formulario label { display: block; font-weight: 600; font-size: 0.95rem; margin-bottom: 6px; }
.formulario .opcional { font-weight: 400; color: var(--gris); font-size: 0.88rem; }
.formulario input, .formulario select, .formulario textarea { width: 100%; font: inherit; font-size: 1rem; padding: 11px 13px; border: 1px solid #c8d0dc; border-radius: 8px; background: var(--blanco); color: var(--tinta); }
.formulario input:focus, .formulario select:focus, .formulario textarea:focus { border-color: var(--acento-osc); outline: 3px solid var(--acento-suave); outline-offset: 0; }
.formulario textarea { min-height: 150px; resize: vertical; }
.formulario .error { color: #b42318; font-size: 0.9rem; margin-top: 5px; display: none; }
.formulario .invalido input, .formulario .invalido select, .formulario .invalido textarea { border-color: #b42318; }
.formulario .invalido .error { display: block; }
.formulario .advertencia { font-size: 0.93rem; color: var(--gris); background: var(--gris-fondo); padding: 12px 14px; border-radius: 8px; }
.formulario .trampa { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
#estado:not(:empty) { padding: 12px 14px; border-radius: 8px; background: var(--acento-suave); color: var(--acento-osc); font-weight: 500; }

/* Persona */
.persona { display: flex; gap: 22px; align-items: center; padding: 26px; border: 1px solid var(--linea); border-radius: var(--radio); max-width: 640px; }
.persona .foto { flex: 0 0 76px; height: 76px; border-radius: 50%; background: var(--noche); color: var(--acento); display: grid; place-items: center; font-family: var(--mono); font-size: 1.15rem; }
.persona p { color: var(--gris); }

/* Cierre comercial */
.banda-cta { background: var(--noche); color: var(--claro); padding: 88px 0; }
.banda-cta .caja { position: relative; overflow: hidden; border-radius: 16px; padding: 56px; background: linear-gradient(135deg, #0f2a33 0%, var(--noche-2) 60%); border: 1px solid var(--noche-borde); display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.banda-cta .caja::after { content: ""; position: absolute; width: 420px; height: 420px; right: -120px; bottom: -220px; background: radial-gradient(circle, rgba(45, 212, 191, 0.25), transparent 65%); pointer-events: none; }
.banda-cta h2 { margin: 0 0 8px; font-size: clamp(1.6rem, 3vw, 2.2rem); }
.banda-cta p { max-width: 620px; color: var(--claro-2); }
.banda-cta .caja > * { position: relative; z-index: 1; }

/* Pie */
.pie { background: var(--noche); color: var(--claro-2); padding: 64px 0 36px; font-size: 0.94rem; border-top: 1px solid var(--noche-borde); }
.pie .columnas { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 44px; }
.pie h2 { font-family: var(--mono); font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; color: var(--claro); font-size: 0.8rem; margin-bottom: 14px; }
.pie ul { list-style: none; display: grid; gap: 8px; }
.pie a { color: var(--claro-2); text-decoration: none; }
.pie a:hover { color: var(--acento); }
.pie .legal { border-top: 1px solid var(--noche-borde); padding-top: 24px; font-size: 0.85rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* Responsive */
@media (max-width: 1000px) {
  .grilla.cuatro, .grilla.tres { grid-template-columns: repeat(2, 1fr); }
  .pasos { grid-template-columns: repeat(2, 1fr); row-gap: 8px; }
  .partida { grid-template-columns: 1fr; gap: 24px; }
  .pie .columnas { grid-template-columns: 1fr 1fr; }
  .boton-menu { display: block; }
  .nav { display: none; position: absolute; top: 70px; left: 0; right: 0; background: var(--noche); border-bottom: 1px solid var(--noche-borde); flex-direction: column; align-items: stretch; padding: 16px 28px 28px; gap: 18px; max-height: calc(100vh - 70px); overflow-y: auto; }
  .nav.abierto { display: flex; }
  .menu { flex-direction: column; align-items: flex-start; gap: 12px; }
  .separador { display: none; }
  .desplegable ul { display: block; position: static; border: 0; padding: 6px 0 0 14px; min-width: 0; box-shadow: none; background: none; }
  .desplegable > button { pointer-events: none; }
  .nav .boton { justify-content: center; }
}
@media (max-width: 640px) {
  body { font-size: 16.5px; }
  .contenedor { padding: 0 16px; }
  .seccion { padding: 64px 0; }
  .portada { padding: 80px 0 72px; }
  .grilla.dos, .grilla.tres, .grilla.cuatro, .lista-temas, .pasos, .formulario .fila { grid-template-columns: 1fr; }
  .pie .columnas { grid-template-columns: 1fr; }
  .necesidad { flex-direction: column; align-items: flex-start; }
  .formulario { padding: 20px; }
  .banda-cta .caja { padding: 32px 24px; }
}