/* ==========================================================================
   Domain Security
   Paleta clara y sobria: grafito azulado sobre blanco roto, acento ocre ámbar.
   Los bloques de código siguen siendo oscuros (--code-bg) porque el resaltado
   de Hugo usa el tema monokai, que es oscuro. No cambiar sin cambiar también
   markup.highlight.style en hugo.toml.
   ========================================================================== */

:root {
  --bg: #faf9f7;
  --surface: #f1efea;
  --surface-deep: #e9e5dd;
  --fg: #16202e;
  --fg-dim: #55606e;
  --accent: #b45309;
  --accent-ink: #8a3f07;
  --accent-wash: #fdf3e7;
  --border: #e0dcd4;
  --border-strong: #cfc8bc;
  --code-bg: #16202e;

  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --measure: 760px;
  --measure-wide: 1060px;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.wrap-wide { max-width: var(--measure-wide); }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-ink); text-decoration: underline; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

img { max-width: 100%; height: auto; }

/* Salto al contenido, sólo visible al tabular */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--fg);
  color: var(--bg);
  padding: 0.6rem 1rem;
  z-index: 10;
}
.skip-link:focus {
  left: 0;
  color: var(--bg);
  text-decoration: none;
}

/* ---------- Cabecera ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 0;
  background: var(--bg);
}
.site-header .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.brand:hover { color: var(--fg); text-decoration: none; }
.brand .mark { color: var(--accent); }
.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  display: block;
  flex: none;
}

.main-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}
.main-nav a {
  color: var(--fg-dim);
  font-size: 0.92rem;
}
.main-nav a.active, .main-nav a:hover { color: var(--fg); text-decoration: none; }
.main-nav a.active { font-weight: 600; }

.lang-switch {
  display: flex;
  gap: 0.5rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--border);
}
.lang-switch a { font-size: 0.82rem; color: var(--fg-dim); }
.lang-switch a:hover { color: var(--fg); }

main.wrap { padding-top: 2.5rem; padding-bottom: 3.5rem; min-height: 60vh; }

/* ---------- Botones ---------- */

.btn {
  display: inline-block;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  line-height: 1.3;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); color: #fff; text-decoration: none; }
.btn-secondary { background: transparent; color: var(--fg); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--surface); color: var(--fg); text-decoration: none; }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

/* ---------- Secciones de portada ---------- */

.home-section { padding: 3.25rem 0; border-top: 1px solid var(--border); }
.home-section:first-of-type { border-top: none; }
.section-head { margin-bottom: 1.75rem; }
.section-head h2 {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.4rem;
}
.section-head p { color: var(--fg-dim); margin: 0; max-width: 62ch; }
.section-body { max-width: 68ch; margin: 0 0 1rem; }

.eyebrow {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

/* Hero */
.hero {
  padding: 2.25rem 0 3.5rem;
  display: grid;
  gap: 2.25rem;
  align-items: center;
}
/* Dos columnas sólo cuando hay sitio de verdad; debajo se apila */
@media (min-width: 900px) {
  .hero { grid-template-columns: 1.05fr 0.95fr; gap: 3rem; }
}
.hero-viz { justify-self: center; width: 100%; max-width: 440px; }
.hero-graph { width: 100%; height: auto; display: block; }

.net-edge { fill: none; stroke: #d8d3ca; stroke-width: 2; }
.net-node { fill: #c9c3b8; }
.attack-path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.step .dot { fill: var(--accent); transition: r 0.15s ease; }
.step:last-of-type .dot { fill: var(--fg); }
.step text {
  fill: #fff;
  font-size: 13px;
  font-weight: 700;
  font-family: var(--sans);
  pointer-events: none;
}
.step .halo { fill: none; stroke: var(--accent); stroke-width: 2; opacity: 0; }
.step.is-active .halo { opacity: 0.45; }
.step:last-of-type .halo { stroke: var(--fg); }
/* El puntero y el foco sólo cuando el JS ha tomado el control */
.is-interactive .step { cursor: pointer; }
.is-interactive .step:hover .halo { opacity: 0.3; }
.step:focus { outline: none; }
.step:focus-visible .halo { opacity: 1; stroke-width: 3; }

.hero-panel {
  margin-top: 0.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  min-height: 6.5rem;
}
.step-count {
  margin: 0 0 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
}
.step-title { margin: 0 0 0.35rem; font-size: 1.02rem; letter-spacing: -0.01em; }
.step-desc { margin: 0; color: var(--fg-dim); font-size: 0.92rem; line-height: 1.55; }
.hero h1 {
  font-size: clamp(1.85rem, 5.5vw, 2.85rem);
  line-height: 1.18;
  letter-spacing: -0.022em;
  margin: 0 0 1rem;
  max-width: 20ch;
}
.hero .lead {
  font-size: clamp(1rem, 2.4vw, 1.15rem);
  color: var(--fg-dim);
  max-width: 58ch;
  margin: 0;
}

/* Rejilla de tarjetas */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.card h3 {
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
  line-height: 1.35;
}
.card p { color: var(--fg-dim); margin: 0; font-size: 0.94rem; }
.card .card-for {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border-strong);
  font-size: 0.85rem;
  color: var(--fg-dim);
}
.card .card-for strong { color: var(--fg); font-weight: 600; }

/* Bloque de metodología */
.method-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}
.method-step {
  border-left: 3px solid var(--accent);
  padding: 0.1rem 0 0.1rem 1rem;
}
.method-step h3 { font-size: 1rem; margin: 0 0 0.35rem; }
.method-step p { color: var(--fg-dim); margin: 0; font-size: 0.94rem; }

/* Tarjeta destacada del informe */
.feature-card {
  display: block;
  background: var(--accent-wash);
  border: 1px solid var(--border-strong);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.4rem;
  margin-top: 1.25rem;
  color: var(--fg);
}
.feature-card:hover { text-decoration: none; color: var(--fg); border-color: var(--accent); }
.feature-card h3 { margin: 0 0 0.45rem; font-size: 1.05rem; }
.feature-card p { margin: 0; color: var(--fg-dim); font-size: 0.94rem; }
.feature-card .more { display: inline-block; margin-top: 0.8rem; color: var(--accent); font-weight: 600; font-size: 0.9rem; }

/* Franja de llamada a la acción */
.cta-band {
  background: var(--fg);
  color: var(--bg);
  border-radius: var(--radius);
  padding: 2.25rem 1.5rem;
  margin: 3.25rem 0 0;
  text-align: center;
}
.cta-band h2 { margin: 0 0 0.6rem; font-size: 1.4rem; color: var(--bg); }
.cta-band p { margin: 0 auto; color: #c3cbd6; max-width: 50ch; }
.cta-band .btn-row { justify-content: center; }
.cta-band .btn-secondary { color: var(--bg); border-color: #47536a; }
.cta-band .btn-secondary:hover { background: #24334a; color: var(--bg); }

/* ---------- Listado de posts (reutilizado en portada y portfolio) ---------- */

.post-list { list-style: none; padding: 0; margin: 1.5rem 0; }
.post-list li.post-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 0.9rem;
  margin: 0 -0.9rem;
  border-radius: 8px;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.15s ease;
}
.post-list li.post-card:hover { background-color: var(--surface); }
.post-list li.post-card:last-child { border-bottom: none; }
.post-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.4;
}
.post-card-title:hover { color: var(--accent); text-decoration: none; }
.post-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
}
.post-list time { color: var(--fg-dim); font-size: 0.8rem; white-space: nowrap; }
.post-list .empty { color: var(--fg-dim); border-bottom: none; padding: 0.6rem 0; }

.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tag {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--fg-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  font-family: var(--mono);
  white-space: nowrap;
}

.see-all { display: inline-block; margin-top: 0.5rem; font-weight: 600; font-size: 0.92rem; }

/* ---------- Páginas de contenido ---------- */

.page-header { margin-bottom: 2rem; }
.page-header h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.2rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
  line-height: 1.2;
}
.page-header .lead { color: var(--fg-dim); font-size: 1.05rem; margin: 0; max-width: 60ch; }

.page-content { max-width: 68ch; }
.page-content h2 {
  font-size: 1.3rem;
  margin: 2.5rem 0 0.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  letter-spacing: -0.01em;
}
.page-content h3 { font-size: 1.02rem; margin: 1.6rem 0 0.5rem; }
.page-content ul, .page-content ol { padding-left: 1.2rem; }
.page-content li { margin-bottom: 0.35rem; }
.page-content .audience {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  margin: 1.25rem 0;
  font-size: 0.92rem;
  color: var(--fg-dim);
}
.page-content .audience strong { color: var(--fg); }
.page-content .note {
  border-left: 3px solid var(--accent);
  background: var(--accent-wash);
  padding: 0.85rem 1.1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  font-size: 0.92rem;
}
.page-content .note p:first-child { margin-top: 0; }
.page-content .note p:last-child { margin-bottom: 0; }

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.75rem 0;
}

.legal-meta { color: var(--fg-dim); font-size: 0.85rem; margin-top: 2.5rem; }

/* ---------- Post individual ---------- */

.post-header h1 { margin-bottom: 0.3rem; letter-spacing: -0.015em; line-height: 1.25; }
.post-meta {
  color: var(--fg-dim);
  font-size: 0.9rem;
  margin-top: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.post-content { margin-top: 1.5rem; }
.post-content h2 { margin-top: 2rem; border-top: 1px solid var(--border); padding-top: 1.5rem; }

/* Los bloques de comandos se quedan oscuros: monokai es un tema oscuro */
.post-content pre {
  background: var(--code-bg);
  color: #f2f4f7;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  font-family: var(--mono);
}
.post-content .highlight {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  margin: 1.25rem 0;
}
.post-content .highlight pre { border: none; border-radius: 0; margin: 0; }
.post-content code {
  font-family: var(--mono);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--fg);
  padding: 0.05rem 0.35rem;
  border-radius: 3px;
  font-size: 0.88em;
}
.post-content pre code { background: none; padding: 0; border: none; color: inherit; }
.post-content img { max-width: 100%; border-radius: 6px; border: 1px solid var(--border); }
.post-content blockquote {
  border-left: 3px solid var(--accent);
  margin: 1rem 0;
  padding: 0.2rem 1rem;
  color: var(--fg-dim);
}
.post-content table { border-collapse: collapse; width: 100%; display: block; overflow-x: auto; }
.post-content th, .post-content td { border: 1px solid var(--border); padding: 0.4rem 0.6rem; }
.post-content th { background: var(--surface); }

.pagination { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }

/* ---------- Pie ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  color: var(--fg-dim);
  font-size: 0.85rem;
  background: var(--surface);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.site-footer a { color: var(--fg-dim); }
.site-footer a:hover { color: var(--accent-ink); }
.site-footer .links { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; }

/* ---------- Móvil ---------- */

@media (max-width: 560px) {
  .site-header .wrap { justify-content: flex-start; }
  .main-nav { width: 100%; gap: 0.25rem 0.9rem; }
  .hero { padding: 2rem 0 2.5rem; }
  .home-section { padding: 2.5rem 0; }
  .cta-band { padding: 1.75rem 1.15rem; }
  .btn { display: block; text-align: center; }
  .btn-row { flex-direction: column; align-items: stretch; }
}