:root {
  --bg: #0d1013;
  --bg-alt: #13171b;
  --surface: #191e23;
  --line: #2a3138;
  --text: #e7eaec;
  --muted: #9aa4ad;
  --accent: #ffb020;
  --accent-ink: #1a1200;
  --link: #ffc65c;
  --radius: 10px;
  --wrap: 1120px;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fbfaf7;
    --bg-alt: #f2f0eb;
    --surface: #ffffff;
    --line: #dedad2;
    --text: #15191d;
    --muted: #5b646c;
    --accent: #b86e00;
    --accent-ink: #ffffff;
    --link: #9a5b00;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
@media (min-width: 720px) { .wrap { padding: 0 32px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 6px; z-index: 10; }
.skip:focus { left: 8px; }

/* Cabecera */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 600; }
.brand-mark {
  font: 600 13px/1 var(--mono); letter-spacing: .04em;
  border: 1.5px solid var(--accent); color: var(--accent);
  padding: 6px 5px; border-radius: 6px;
}
.nav { display: flex; gap: 4px 18px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--text); }
@media (max-width: 640px) { .brand-name { display: none; } .header-inner { padding-block: 8px; } }

/* Hero */
.hero { padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; gap: 40px; align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.15fr .85fr; } }
.eyebrow { font: 500 13px/1.4 var(--mono); color: var(--accent); letter-spacing: .06em; text-transform: uppercase; margin: 0 0 14px; }
h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.08; letter-spacing: -.02em; margin: 0 0 20px; text-wrap: balance; }
.lead { font-size: 19px; color: var(--muted); max-width: 60ch; margin: 0 0 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-block; padding: 11px 18px; border-radius: 8px;
  background: var(--accent); color: var(--accent-ink); font-weight: 600; text-decoration: none;
  font-size: 15px; overflow-wrap: anywhere;
}
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--accent); }
.hero-figure { margin: 0; max-width: 340px; justify-self: center; }
.hero-figure img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); aspect-ratio: 1; object-fit: cover; box-shadow: 0 0 0 6px var(--bg), 0 0 0 7px var(--accent); }
.hero-figure figcaption { font-size: 14px; color: var(--muted); margin-top: 10px; }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 44px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 720px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { background: var(--bg); padding: 18px 20px; }
.stat b { display: block; font: 600 28px/1.1 var(--mono); color: var(--text); }
.stat span { font-size: 14px; color: var(--muted); }

/* Secciones */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
h2 { font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -.01em; margin: 0 0 28px; }
h3 { font-size: 19px; margin: 0 0 8px; }
.section-intro { color: var(--muted); max-width: 70ch; margin: -12px 0 28px; }
.meta { font: 13px/1.5 var(--mono); color: var(--muted); margin: 0 0 10px; }
.muted { color: var(--muted); }

.cards { display: grid; gap: 16px; }
@media (min-width: 720px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .cards { grid-template-columns: repeat(4, 1fr); } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; border-top: 3px solid var(--accent); }
.card p { margin: 0; color: var(--muted); font-size: 16px; }

.projects { display: grid; gap: 20px; }
@media (min-width: 900px) { .projects { grid-template-columns: repeat(2, 1fr); } }
.project { display: grid; grid-template-columns: 1fr; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (min-width: 560px) { .project { grid-template-columns: 200px 1fr; } }
.project img { width: 100%; height: 100%; min-height: 180px; max-height: 260px; object-fit: cover; }
.project > div { padding: 20px 22px; }
.project p:last-child { margin: 0; font-size: 16px; }

/* Archivo */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.chip { font: 500 14px/1 var(--sans); padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; }
.chip:hover { color: var(--text); border-color: var(--muted); }
.chip.is-active { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.year { display: grid; gap: 4px 28px; padding: 22px 0; border-top: 1px solid var(--line); }
@media (min-width: 720px) { .year { grid-template-columns: 90px 1fr; } }
.year > h3 { font: 600 22px/1.3 var(--mono); color: var(--accent); margin: 0; }
.talks { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.talk { display: grid; gap: 4px; }
.talk[hidden] { display: none; }
.talk-title { font-weight: 600; font-size: 17px; }
.talk-meta { font: 13px/1.5 var(--mono); color: var(--muted); }
.talk-links { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 14px; }
.talk-links a { white-space: nowrap; }
.year.is-empty { display: none; }

.book p { max-width: 68ch; }
.contact .mail { font: 600 clamp(20px, 3.5vw, 30px)/1.3 var(--mono); overflow-wrap: anywhere; }

.site-footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 14px; }
.site-footer p { margin: 4px 0; }

/* --- Enlaces de proyecto (tarjetas clicables) --- */
.project-link { text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
.project-link:hover { border-color: var(--accent); }
.project-link h3 { color: var(--text); }
.project-link .arrow { color: var(--accent); font-weight: 400; }
.project-link:hover .arrow { padding-left: 4px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 0; }
.tag { font: 500 12px/1 var(--mono); color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; }

.proj-index { display: grid; gap: 20px; }
@media (min-width: 900px) { .proj-index { grid-template-columns: repeat(2, 1fr); } }

/* --- Página de proyecto --- */
.hero-project { padding: 40px 0 36px; }
.crumbs { font: 13px/1.5 var(--mono); color: var(--muted); margin: 0 0 20px; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.hero-figure-wide { max-width: none; }
.hero-figure-wide img { width: 100%; aspect-ratio: 4/3; object-fit: cover; box-shadow: none; }

.project-body { display: grid; gap: 36px; align-items: start; }
@media (min-width: 900px) { .project-body { grid-template-columns: 1.6fr .9fr; } }
.prose p { font-size: 18px; margin: 0 0 18px; max-width: 65ch; }
.prose p:last-child { margin-bottom: 0; }
.project-aside { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; position: sticky; top: 80px; }
.aside-h { font: 600 14px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.aside-h + ul { margin-top: 0; }
.project-aside .aside-h ~ .aside-h { margin-top: 22px; }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.ticks li { position: relative; padding-left: 22px; font-size: 15px; color: var(--text); }
.ticks li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); }
.aside-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15px; }

.gallery { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.gallery figure { margin: 0; }
.gallery img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); }

.center { text-align: center; }

/* --- Iconos en los enlaces (favicon de la fuente + glifo de tipo) --- */
.talk-links a, .aside-links a { display: inline-flex; align-items: center; gap: 6px; line-height: 1; white-space: nowrap; }
.talk-links { gap: 8px 16px; }
.favi {
  display: block; width: 16px; height: 16px; border-radius: 3px;
  flex: 0 0 16px; object-fit: contain; background: #fff;
}
.t-ico { display: block; width: 15px; height: 15px; flex: 0 0 15px; }
@media (prefers-color-scheme: light) {
  .favi { background: transparent; box-shadow: 0 0 0 1px var(--line); }
}

/* --- Lista de vídeos en páginas de proyecto --- */
.vids { display: grid; gap: 10px; max-width: 720px; }
.vid {
  display: flex; align-items: center; gap: 12px; text-decoration: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 12px 16px; color: var(--text);
}
.vid:hover { border-color: var(--accent); }
.vid-ico { display: inline-flex; align-items: center; gap: 6px; flex: 0 0 auto; }
.vid-t { flex: 1 1 auto; font-weight: 500; }
.vid-y { font: 13px/1 var(--mono); color: var(--muted); flex: 0 0 auto; }

/* --- Portada del libro --- */
.book { display: grid; gap: 28px; align-items: center; }
@media (min-width: 720px) { .book { grid-template-columns: 200px 1fr; } }
.book-cover { margin: 0; }
.book-cover img { width: 100%; max-width: 200px; border-radius: 6px; border: 1px solid var(--line); box-shadow: 0 8px 24px rgba(0,0,0,.35); }

/* --- Pie: enlace a X, discreto --- */
.footer-flex { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; }
.footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; }
.x-link { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); text-decoration: none; font-size: 14px; }
.x-link:hover { color: var(--text); }
.x-link svg { width: 15px; height: 15px; }

/* --- Destacado de congresos de primer nivel (BlackHat/DEFCON/RootedCON) --- */
.talk.destacada .talk-title { font-weight: 700; }
.star { color: var(--accent); }
/* --- Prensa: medio y año --- */
.medio { color: var(--muted); font-weight: 400; }
.vid .vid-y { margin-left: auto; }

/* --- Nota de hito en una entrada del archivo --- */
.talk-nota {
  font-size: 13.5px; color: var(--text);
  border-left: 2px solid var(--accent); padding-left: 10px; margin: 2px 0;
}

/* --- Logo de la conferencia en la línea del título --- */
.talk-title { display: flex; align-items: center; gap: 9px; }
.conf-logo {
  width: 22px; height: 22px; flex: 0 0 22px; border-radius: 4px;
  background: #fff; object-fit: contain; padding: 1px;
}
@media (prefers-color-scheme: light) {
  .conf-logo { background: transparent; box-shadow: 0 0 0 1px var(--line); }
}

/* --- Vídeo destacado (primicia) y su nota --- */
.vid.destacada { border-color: var(--accent); }
.vid-nota { display: block; font-size: 12.5px; color: var(--muted); font-weight: 400; margin-top: 3px; }

/* --- Enlaces extra en la cabecera: TechFrontiers + X --- */
.nav-tf a { color: var(--accent); font-weight: 600; }
.nav-tf a:hover { color: var(--link); }
.nav-x a { display: inline-flex; align-items: center; color: var(--muted); }
.nav-x a:hover { color: var(--text); }
.nav-x svg { width: 15px; height: 15px; display: block; }

/* --- Barra superior: próxima formación --- */
.topbar {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  flex-wrap: wrap; text-align: center;
  padding: 9px 16px; background: color-mix(in srgb, var(--accent) 14%, var(--bg));
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  color: var(--text); text-decoration: none; font-size: 14.5px;
}
.topbar:hover { background: color-mix(in srgb, var(--accent) 22%, var(--bg)); }
.topbar-tag {
  font: 700 11px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent-ink); background: var(--accent); padding: 4px 8px; border-radius: 999px;
}
.topbar-txt { font-weight: 600; }
.topbar-arrow { color: var(--accent); font-weight: 700; }
/* LinkedIn en cabecera (igual que X) */
.nav-in a { display: inline-flex; align-items: center; color: var(--muted); }
.nav-in a:hover { color: var(--text); }
.nav-in svg { width: 15px; height: 15px; display: block; }

/* --- Logotipo de marca Nexceptor (fuente estilo ROG, Orbitron) --- */
@font-face {
  font-family: "Nexceptor";
  src: url(/fonts/orbitron.woff2) format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
.nexceptor { font-family: "Nexceptor", var(--sans); letter-spacing: .015em; }
.nex-c { font-family: var(--sans); font-size: .5em; vertical-align: super; margin-left: 1px; color: var(--muted); }
/* --- Logo de Black Hat en la barra de formación --- */
.topbar-logo { width: 18px; height: 18px; border-radius: 3px; background: #fff; }

/* --- Distintivo de sede (Main Track / Briefings vs Arsenal / Village / Training) --- */
.venue {
  display: inline-block; font: 600 11px/1 var(--mono); letter-spacing: .03em;
  padding: 3px 7px; border-radius: 4px; vertical-align: middle; white-space: nowrap;
}
.venue-top { background: var(--accent); color: var(--accent-ink); }
.venue-sub { border: 1px solid var(--line); color: var(--muted); }

/* --- Training: nivel alto (como Main Track) pero color propio (teal) --- */
.venue-training { background: #1fb6c7; color: #04222a; }
@media (prefers-color-scheme: light) {
  .venue-training { background: #0e8ea0; color: #ffffff; }
}

/* --- Meta en la barra de próxima formación --- */
.topbar-meta { font: 500 13px/1 var(--mono); color: var(--muted); }

/* --- Tabulado: el detalle se indenta para resaltar el título --- */
.talk { display: grid; gap: 6px; }
.talk-title { font-size: 17.5px; }
.talk-detalle { display: grid; gap: 5px; padding-left: 16px; border-left: 2px solid var(--line); margin-left: 2px; }
.talk.destacada .talk-detalle { border-left-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }

/* --- Badge de categoría (charla / mesa redonda / formación / demo) --- */
.cat {
  display: inline-block; font: 600 10.5px/1 var(--mono); letter-spacing: .04em;
  text-transform: uppercase; padding: 3px 7px; border-radius: 4px;
  border: 1px solid currentColor; vertical-align: middle; margin-right: 4px;
}
.cat-charla { color: var(--muted); }
.cat-mesa { color: #b57edc; }
.cat-formacion { color: #35b67a; }
.cat-demo { color: #e08a2b; }
@media (prefers-color-scheme: light) {
  .cat-mesa { color: #7a3ea8; }
  .cat-formacion { color: #1a8a55; }
  .cat-demo { color: #b4610c; }
}

/* --- Selector de idioma en la cabecera --- */
.nav-lang a {
  font: 600 12px/1 var(--mono); color: var(--muted);
  border: 1px solid var(--line); border-radius: 5px; padding: 5px 8px;
}
.nav-lang a:hover { color: var(--text); border-color: var(--accent); }

/* --- Enlace de persona (Gabriela): mismo color del texto, solo subrayado --- */
.p-link { color: inherit; text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.p-link:hover { text-decoration-color: var(--accent); }

/* Nombre del congreso resaltado (azul acero frío) */
.conf-name { color: #9db4ff; font-weight: 600; }
@media (prefers-color-scheme: light) {
  .conf-name { color: #3650c0; }
}