/* =========================================================
   TOKENS — cambia aquí los colores/tamaños base de todo el sitio
   ========================================================= */
:root{
  --paper:   #0A0A0B;
  --ink:     #ECECEE;
  --ink-70:  rgba(236,236,238,.72);
  --ink-50:  rgba(236,236,238,.48);
  --red:     #E8102A;
  --red-deep:#8C0A1A;
  --blue:    #4EA8FF;
  --green:   #46D39A;
  --line:    rgba(255,255,255,.14);
  --line-soft: rgba(255,255,255,.08);

  --serif: "Newsreader", Georgia, serif;
  --sans:  "Inter", -apple-system, Segoe UI, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;

  --max: 760px;
  --gutter: 28px;
  --rail-w: 220px;
}

*{ box-sizing: border-box; }
[hidden]{ display: none !important; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a{ color: inherit; }
:focus-visible{ outline: 2px solid var(--red); outline-offset: 3px; }

.skip-link{
  position: absolute;
  left: -999px; top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  z-index: 100;
  font-family: var(--mono);
  font-size: 13px;
  text-decoration: none;
}
.skip-link:focus{ left: 16px; top: 16px; }

/* =========================================================
   RIEL DE NAVEGACIÓN
   móvil: barra horizontal arriba · escritorio: columna fija a la izq.
   ========================================================= */
.rail{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px var(--gutter) 0;
  max-width: 980px;
  margin: 0 auto;
}

.rail__mark{
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .04em;
  border: 1px solid var(--ink);
  padding: 4px 8px;
  flex-shrink: 0;
}

.rail__links{
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.rail__links a{
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-70);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.rail__links a:hover{ color: var(--ink); border-color: var(--red); }
.rail__links a.is-active{ color: var(--ink); border-color: var(--red); }

/* =========================================================
   MASTHEAD
   ========================================================= */
.masthead{
  position: relative;
  max-width: 980px;
  margin: 0 auto;
  padding: 0 var(--gutter);
  overflow: hidden;
  animation: rise .6s ease-out both;
}
@keyframes rise{
  from{ opacity: 0; transform: translateY(10px); }
  to{ opacity: 1; transform: translateY(0); }
}

.masthead__scanlines{
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,.03) 0px,
    rgba(255,255,255,.03) 1px,
    transparent 1px,
    transparent 3px
  );
  mask-image: linear-gradient(to bottom, black, transparent);
}

.masthead__graphic{
  display: none;
  position: absolute;
  right: -60px;
  top: -30px;
  width: 380px;
  height: 380px;
  opacity: .55;
  pointer-events: none;
  z-index: 0;
}

.masthead__body{
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 30px;
  padding: 40px 0 34px;
}

.masthead__identity{
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.avatar{
  position: relative;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: var(--line-soft);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6px;
}
.avatar__initials{
  font-family: var(--serif);
  font-weight: 600;
  font-size: 26px;
  color: var(--ink-70);
}
.avatar__img{
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}
.avatar__badge{
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--red);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--paper);
  animation: pulse-badge 2.6s ease-in-out infinite;
}
@keyframes pulse-badge{
  0%, 100%{ box-shadow: 0 0 0 0 rgba(232,16,42,.55); }
  50%{ box-shadow: 0 0 0 7px rgba(232,16,42,0); }
}

.masthead__body h1{
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 7vw, 3rem);
  line-height: 1.05;
  margin: 0;
  letter-spacing: -0.01em;
}
.masthead__rol{
  font-size: clamp(1rem, 3vw, 1.2rem);
  font-style: italic;
  font-family: var(--serif);
  color: var(--ink-70);
  margin: 0;
  min-height: 1.4em;
}

.masthead__meta{
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-70);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.meta-sep{ color: var(--ink-50); }

.status{ display: inline-flex; align-items: center; gap: 7px; }
.status__dot{
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(232,16,42,.22);
  animation: pulse-dot 2.6s ease-in-out infinite;
}
@keyframes pulse-dot{
  0%, 100%{ opacity: 1; }
  50%{ opacity: .45; }
}

.masthead__bio p{ margin: 0 0 14px; color: var(--ink-70); }
.masthead__bio p:last-child{ margin-bottom: 0; }
.masthead__bio .lead{ font-size: 17px; color: var(--ink); }

.masthead__rule{
  height: 3px;
  background: var(--red);
  margin-top: 4px;
  position: relative;
  z-index: 1;
}

/* =========================================================
   DOCUMENTO / SECCIONES
   ========================================================= */
.doc{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.sec{
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 8px 24px;
  padding: 64px 0;
  border-top: 1px solid var(--line);
}
.sec:first-child{ border-top: none; }

.sec__index{
  font-family: var(--mono);
  font-size: 13px;
  color: var(--red);
  padding-top: 6px;
}

.sec__body{ max-width: var(--max); }

.sec__body h2{
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  margin: 0 0 18px;
}

.sec__intro{
  color: var(--ink-70);
  margin: -8px 0 26px;
  font-size: 15px;
}

.sec__body p{ margin: 0 0 16px; }
.sec__body p:last-child{ margin-bottom: 0; }

/* =========================================================
   HABILIDADES — tabla, no tarjetas
   ========================================================= */
.skills{ display: flex; flex-direction: column; gap: 34px; }
.skills--secondary{ margin-top: 34px; padding-top: 34px; border-top: 1px solid var(--line); }

.skills__group h3{
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.skills__group h3 svg{ color: var(--red); flex-shrink: 0; }
.skills__group h3 .tag-level{
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-50);
}

.skills__row{
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr;
  gap: 4px 20px;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}
.skills__row:first-of-type{ border-top: 1px solid var(--line); margin-top: 10px; }

.skills__name{ font-weight: 500; }
.skills__ctx{ color: var(--ink-70); font-size: 14.5px; }

/* --- Dominios de formación --- */
.skills--domains{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.domain-card{
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.022) 0%, rgba(255,255,255,.004) 100%);
  overflow: hidden;
}
.domain-card::before{
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 34px; height: 2px;
  background: var(--red);
}
.domain-card--featured{
  grid-column: 1 / -1;
  border-color: rgba(78,168,255,.35);
  background:
    radial-gradient(130% 150% at 0% 0%, rgba(78,168,255,.09), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.022) 0%, rgba(255,255,255,.004) 100%);
}
.domain-card--featured::before{
  width: 100%;
  background: var(--blue);
  opacity: .75;
}

.domain-card__head{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.domain-card__title-wrap{
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.domain-card__index{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--ink-50);
}
.domain-card__title{
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1.35;
  margin: 0;
}
.domain-card__icon{
  display: inline-flex;
  flex-shrink: 0;
  color: var(--red);
}
.domain-card--featured .domain-card__icon{ color: var(--blue); }

.domain-card__meta{
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  flex-shrink: 0;
}
.domain-card__level{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-50);
  white-space: nowrap;
}
.domain-card__flag{
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--blue);
  border: 1px solid rgba(78,168,255,.4);
  background: rgba(78,168,255,.08);
  padding: 2px 6px;
  white-space: nowrap;
}

.domain-card__desc{
  margin: 9px 0 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-50);
}
.domain-card__items{
  display: flex;
  flex-direction: column;
  margin-top: 14px;
}
.domain-card__item{
  padding: 10px 0;
  border-top: 1px solid var(--line-soft);
}
.domain-card__item:first-child{
  border-top: 1px solid var(--line);
  margin-top: 2px;
}
.domain-card__item:last-child{ padding-bottom: 0; }
.domain-card__item-name{
  font-weight: 500;
  font-size: 13.5px;
  line-height: 1.4;
}
.domain-card__item-ctx{
  margin-top: 2px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ink-70);
}

/* =========================================================
   COMUNIDAD
   ========================================================= */
.community-block{ margin-bottom: 36px; }
.community-block:last-child{ margin-bottom: 0; }

.community-block__title{
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0 0 8px;
}
.community-block__desc{ margin: 0 0 14px; }

.article-list{ display: flex; flex-direction: column; }

.article-link{
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
  text-decoration: none;
  color: var(--ink);
}
.article-link:first-child{ border-top: 1px solid var(--line); }

.article-link__title{ font-weight: 500; font-size: 14.5px; }
.article-link__action{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-50);
  white-space: nowrap;
  transition: color .15s ease;
}
.article-link:hover .article-link__action{ color: var(--red); }

/* =========================================================
   INSIGNIAS
   ========================================================= */
.badges{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

.badge-card{
  background: linear-gradient(180deg, rgba(255,255,255,.025) 0%, rgba(255,255,255,.004) 100%);
  border: 1px solid var(--line);
  padding: 16px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: border-color .2s ease, transform .2s ease, background .2s ease;
}
.badge-card::before{
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 34px; height: 2px;
  background: var(--red);
  transition: width .25s ease;
}
.badge-card:hover{
  border-color: rgba(232,16,42,.55);
  transform: translateY(-2px);
  background: linear-gradient(180deg, rgba(232,16,42,.05) 0%, rgba(255,255,255,.004) 100%);
}
.badge-card:hover::before{ width: 100%; }

.badge-card__top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-50);
}
.badge-card__platform{
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.badge-card__status{
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--ink-70);
  white-space: nowrap;
}
.badge-card__status-dot{
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(70,211,154,.12);
}
.badge-card__status--muted .badge-card__status-dot{
  background: var(--ink-50);
  box-shadow: none;
}

.badge-card__media{
  margin: 16px auto 14px;
  width: 132px;
  height: 132px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 50% 45%, rgba(232,16,42,.12), transparent 68%),
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: auto, 18px 18px, 18px 18px;
}
.badge-card__img{
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
}
.badge-card__fallback{
  font-family: var(--mono);
  font-size: 26px;
  letter-spacing: .06em;
  color: var(--ink-70);
}

.badge-card__body{
  flex: 1;
  display: flex;
  flex-direction: column;
}
.badge-card__title{
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1.4;
  margin: 0 0 6px;
}
.badge-card__issuer{
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-70);
}
.badge-card__level{
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-50);
  margin-top: 2px;
}

.badge-card__btn{
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11.5px;
  text-align: center;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 9px 12px;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.badge-card__btn:hover{
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}

.badges__more{
  display: inline-block;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 13px;
  text-decoration: none;
  color: var(--ink-70);
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color .15s ease, border-color .15s ease;
}
.badges__more:hover{ color: var(--red); border-color: var(--red); }

/* =========================================================
   PROYECTOS
   ========================================================= */
.projects{ display: flex; flex-direction: column; gap: 16px; }

.project{
  position: relative;
  padding: 22px;
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(255,255,255,.015) 0%, transparent 100%);
  overflow: hidden;
  transition: border-color .2s ease;
}
.project::before{
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 34px; height: 2px;
  background: var(--red);
  transition: width .25s ease;
}
.project:hover{ border-color: var(--line); }
.project:hover::before{ width: 72px; }

.project--featured{
  border-color: rgba(78,168,255,.35);
  background:
    radial-gradient(130% 140% at 0% 0%, rgba(78,168,255,.10), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.02) 0%, transparent 100%);
}
.project--featured::before{
  width: 100%;
  background: var(--blue);
  opacity: .75;
}
.project--featured:hover{ border-color: rgba(78,168,255,.55); }

.project__eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}
.project__eyebrow::before{
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 3px rgba(78,168,255,.15);
}

.project__img-wrap{
  position: relative;
  margin-bottom: 16px;
  border: 1px solid var(--line);
  overflow: hidden;
}
.project__img-wrap::before{
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--red);
  z-index: 1;
}
.project__img{
  display: block;
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  filter: grayscale(.85) contrast(1.05) brightness(.95);
  transition: filter .4s ease;
}
.project__img-wrap:hover .project__img{
  filter: grayscale(0) contrast(1.05);
}

.project__title{
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.15rem;
  margin: 0 0 8px;
}

.project__desc{ margin: 0 0 10px; }

.project__tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.project--featured .tag{
  border-color: rgba(78,168,255,.3);
}

.project__learning{
  margin-top: 18px;
  padding: 14px 16px;
  background: linear-gradient(90deg, rgba(232,16,42,.10) 0%, rgba(232,16,42,.015) 100%);
  border: 1px solid rgba(232,16,42,.22);
  border-left: 3px solid var(--red);
}
.project--featured .project__learning{
  background: linear-gradient(90deg, rgba(78,168,255,.10) 0%, rgba(78,168,255,.015) 100%);
  border-color: rgba(78,168,255,.22);
  border-left-color: var(--blue);
}
.project__learning-title{
  font-weight: 600;
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 5px;
}
.project__learning-text{
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-70);
}
.tag{
  font-family: var(--mono);
  font-size: 11.5px;
  border: 1px solid var(--line);
  padding: 3px 8px;
}

/* =========================================================
   CERTIFICACIONES
   ========================================================= */
.certs{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 16px;
}

.cert-card{
  background: linear-gradient(180deg, rgba(255,255,255,.02) 0%, transparent 100%);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: border-color .2s ease, transform .2s ease;
}
.cert-card::before{
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 34px; height: 2px;
  background: var(--red);
  z-index: 2;
}
.cert-card:hover{
  border-color: rgba(232,16,42,.5);
  transform: translateY(-2px);
}

.cert-card__img-wrap{
  position: relative;
  aspect-ratio: 4 / 3;
  background: #111114;
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.cert-card__img{
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(.55) contrast(1.03) brightness(.94);
  transition: filter .35s ease, transform .35s ease;
}
.cert-card:hover .cert-card__img{
  filter: grayscale(0) contrast(1.03) brightness(1);
  transform: scale(1.025);
}

.cert-card__fallback{
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 22px;
  text-align: center;
  background:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 18px 18px;
}
.cert-card__fallback-kicker{
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-50);
}
.cert-card__fallback-issuer{
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
  color: var(--ink);
}
.cert-card__fallback-title{
  max-width: 220px;
  font-size: 11.5px;
  line-height: 1.45;
  color: var(--ink-50);
}

.cert-card__stamp{
  position: absolute;
  top: 10px;
  right: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--green);
  background: rgba(10,10,11,.82);
  border: 1px solid rgba(70,211,154,.35);
  padding: 4px 7px;
  backdrop-filter: blur(4px);
}
.cert-card__stamp::before{
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green);
}

.cert-card__body{
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 15px 16px 16px;
}
.cert-card__issuer{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 6px;
}
.cert-card__title{
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  margin: 0 0 8px;
}

.cert-card__meta{
  display: flex;
  align-items: baseline;
  gap: 7px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--ink-50);
  margin-bottom: 14px;
}
.cert-card__meta-label{
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: 9.5px;
}
.cert-card__date{ color: var(--ink-70); }

.cert-card__btn{
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 11.5px;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 8px 12px;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.cert-card__btn:hover{
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}

/* =========================================================
   CONTACTO
   ========================================================= */
.contact-links{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}
.contact-link{
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--ink);
  padding: 10px 18px;
  display: inline-block;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.contact-link:hover{
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
}
.contact-link--primary{
  background: var(--ink);
  color: var(--paper);
}
.contact-link--primary:hover{
  background: var(--red-deep);
  border-color: var(--red-deep);
  color: var(--ink);
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer{
  max-width: 980px;
  margin: 40px auto 0;
  padding: 22px var(--gutter) 46px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-50);
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--line);
}

/* =========================================================
   ESCRITORIO — riel fijo a la izquierda + masthead en dos columnas
   ========================================================= */
@media (min-width: 1000px){
  body{ padding-left: var(--rail-w); }

  .skip-link:focus{ left: calc(var(--rail-w) + 16px); }

  .rail{
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--rail-w);
    max-width: none;
    margin: 0;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 56px;
    padding: 48px 30px;
    border-right: 1px solid var(--line);
    z-index: 20;
  }

  .rail__links{
    flex-direction: column;
    gap: 20px;
    counter-reset: navidx;
  }
  .rail__links a{
    position: relative;
    padding-left: 26px;
  }
  .rail__links a::before{
    counter-increment: navidx;
    content: counter(navidx, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--mono);
    font-size: 11px;
    color: var(--ink-50);
  }
  .rail__links a.is-active::before{ color: var(--red); }

  .masthead, .doc, .footer{
    max-width: 880px;
    margin: 0 auto;
    padding-left: 48px;
    padding-right: 48px;
  }

  .masthead__body{
    flex-direction: row;
    align-items: flex-start;
    gap: 64px;
    padding: 76px 0 56px;
  }
  .masthead__identity{
    flex: 0 0 250px;
  }
  .masthead__bio{
    flex: 1;
    padding-top: 10px;
    max-width: 480px;
  }
  .masthead__bio .lead{ font-size: 18.5px; }

  .masthead__graphic{ display: block; }

  .sec{ grid-template-columns: 64px 1fr; padding: 76px 0; }
}

/* =========================================================
   MÓVIL PEQUEÑO
   ========================================================= */
@media (max-width: 640px){
  .sec{ grid-template-columns: 1fr; }
  .sec__index{ padding-top: 0; }
  .skills__row{ grid-template-columns: 1fr; }
  .rail{ flex-wrap: wrap; row-gap: 12px; }
  .rail__links{ gap: 14px; }
  .skills--domains{ grid-template-columns: 1fr; }
  .domain-card--featured{ grid-column: auto; }
  .badges{ grid-template-columns: 1fr; }
  .certs{ grid-template-columns: 1fr; }
  .project{ padding: 18px; }
  .badge-card__media{ width: 118px; height: 118px; }
}

@media (max-width: 420px){
  .badge-card__media{ width: 104px; height: 104px; }
  .project__title{ font-size: 1.05rem; }
  .domain-card{ padding: 16px 15px 14px; }
  .domain-card__head{ gap: 8px; }
}

/* =========================================================
   IMPRESIÓN — versión legible en blanco y negro
   ========================================================= */
@media print{
  .rail, .masthead__scanlines, .masthead__graphic, .avatar__badge, .skip-link{
    display: none !important;
  }
  body{ padding-left: 0 !important; background: #fff !important; color: #111 !important; }
  .masthead, .doc, .footer{ max-width: 100% !important; margin: 0 !important; padding: 0 !important; }
  .masthead__body{ flex-direction: column !important; padding: 0 0 16px !important; }
  .masthead__rol, .masthead__bio p, .skills__ctx, .project__desc, .project__learning,
  .project__learning-text, .domain-card__desc, .domain-card__item-ctx,
  .cert-card__issuer, .cert-card__meta, .badge-card__issuer, .badge-card__level,
  .sec__intro, .community-block__desc{ color: #333 !important; }
  .masthead__rule{ background: #C81E3A !important; }
  .status__dot{ background: #C81E3A !important; animation: none !important; box-shadow: none !important; }
  a{ color: #111 !important; }
  .sec{ border-color: #ddd !important; padding: 22px 0 !important; }
  .badge-card__btn, .cert-card__btn, .badges__more, .contact-links{ display: none !important; }
  .domain-card--featured, .project--featured{ background: #fff !important; }
  .project__learning{ background: #f6f6f6 !important; border-color: #ddd !important; }
}