/* =============================================================
   CONTEXTO GLOBAL — Hoja de estilos principal
   Marca personal ficticia de análisis internacional
   ============================================================= */

/* =============================================================
   1. TOKENS
   ============================================================= */
:root {
  /* Paleta */
  --navy:        #0b1f3a;
  --navy-2:      #14315c;
  --navy-3:      #1c3f70;
  --white:       #ffffff;
  --paper:       #fbfbfa;
  --gray-50:     #f4f6f9;
  --gray-100:    #eceff3;
  --gray-200:    #e2e6ec;
  --gray-300:    #cbd3dd;
  --gray-500:    #7c8797;
  --ink:         #16202e;
  --ink-muted:   #5b6b7d;
  --accent:      #2955a8;
  --accent-soft: #eaf0fc;
  --accent-line: #b9cbf0;
  --gold:        #a9863b;

  /* Tipografía */
  --serif: "Fraunces", "Iowan Old Style", "Georgia", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:  "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  /* Ritmo / espaciado */
  --container: 1180px;
  --container-narrow: 760px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section-y: clamp(4rem, 9vw, 8rem);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  /* Easings */
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:   cubic-bezier(0.7, 0, 0.84, 0);
  --ease-soft: cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Sombra editorial sutil */
  --shadow-sm: 0 1px 2px rgba(11, 31, 58, 0.06), 0 1px 1px rgba(11, 31, 58, 0.04);
  --shadow-md: 0 8px 24px rgba(11, 31, 58, 0.08), 0 2px 6px rgba(11, 31, 58, 0.05);
  --shadow-lg: 0 24px 64px rgba(11, 31, 58, 0.14), 0 6px 16px rgba(11, 31, 58, 0.07);
}

/* =============================================================
   2. RESET & BASE
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  scroll-behavior: smooth;
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
ul, ol { list-style: none; padding: 0; }
h1, h2, h3, h4, h5 {
  font-family: var(--serif);
  font-weight: 600;
  text-wrap: balance;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--navy);
}
input, textarea, select { font: inherit; color: inherit; }
::selection { background: var(--accent-soft); color: var(--navy); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .7rem 1.1rem; background: var(--navy); color: var(--white);
  z-index: 9999; border-radius: 8px; font-weight: 600; font-size: .9rem;
  transition: top .3s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   3. UTILIDADES
   ============================================================= */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
  display: inline-block;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}
.section-head h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.75rem);
  margin-top: .6rem;
  max-width: 30ch;
}
.section-head p {
  max-width: 46ch;
  color: var(--ink-muted);
  font-size: 1.02rem;
}

.divider {
  height: 1px;
  background: linear-gradient(90deg, var(--gray-300), transparent);
  border: 0;
  margin: 0;
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: .02s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: .09s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: .16s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: .23s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: .30s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: .37s; }
.reveal-stagger.is-visible > *:nth-child(7) { transition-delay: .44s; }
.reveal-stagger.is-visible > *:nth-child(8) { transition-delay: .51s; }
.reveal-stagger.is-visible > *:nth-child(9) { transition-delay: .58s; }

/* =============================================================
   4. COMPONENTES
   ============================================================= */

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .85rem 1.6rem;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .01em;
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out), background-color .3s ease, color .3s ease, border-color .3s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform .35s var(--ease-out); }
.btn:hover { transform: translateY(-2px); }
.btn:hover svg { transform: translateX(3px); }

.btn--primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover { background: var(--navy-3); box-shadow: var(--shadow-md); }

.btn--outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--gray-300);
}
.btn--outline:hover { border-color: var(--navy); background: var(--white); box-shadow: var(--shadow-sm); }

.btn--light {
  background: var(--white);
  color: var(--navy);
}
.btn--light:hover { box-shadow: var(--shadow-md); }

.btn--block { width: 100%; justify-content: center; }

/* --- Pills / categorías --- */
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 600;
  padding: .38rem .72rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
}
.tag--dark { background: rgba(255,255,255,.12); color: var(--white); border-color: rgba(255,255,255,.28); }

/* --- Navbar --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding-block: 1.15rem;
  transition: padding .35s var(--ease-out), background-color .35s var(--ease-out), box-shadow .35s var(--ease-out), border-color .35s var(--ease-out);
  background: rgba(251, 251, 250, 0);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  padding-block: .75rem;
  background: rgba(251, 251, 250, 0.92);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--navy);
}
.nav__brand-mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  flex-shrink: 0;
}
.nav__brand small {
  display: block;
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
  margin-top: 1px;
}
.nav__links {
  display: none;
  align-items: center;
  gap: 2.1rem;
}
.nav__links a {
  font-size: .92rem;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  padding-block: .3rem;
}
.nav__links a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width .3s var(--ease-out);
}
.nav__links a:hover::after,
.nav__links a.is-active::after { width: 100%; }
.nav__links a.is-active { color: var(--accent); }

.nav__cta { display: none; }

.nav__toggle {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--gray-300);
}
.nav__toggle svg { width: 18px; height: 18px; }
.nav__toggle .icon-close { display: none; }
.nav__toggle.is-open .icon-menu { display: none; }
.nav__toggle.is-open .icon-close { display: block; }

.nav__mobile {
  position: fixed;
  inset: 0;
  top: 0;
  background: var(--navy);
  z-index: 400;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem var(--gutter) 3rem;
  transform: translateY(-100%);
  transition: transform .5s var(--ease-out);
}
.nav__mobile.is-open { transform: translateY(0); }
.nav__mobile ul { display: flex; flex-direction: column; gap: 1.1rem; }
.nav__mobile a {
  font-family: var(--serif);
  font-size: 2.1rem;
  color: var(--white);
  font-weight: 600;
}
.nav__mobile .btn { margin-top: 2.2rem; }

/* --- Reading progress bar --- */
.progress-bar {
  position: fixed; top: 0; left: 0; height: 3px;
  background: var(--accent);
  z-index: 600;
  width: 0%;
  transition: width .1s linear;
}

/* --- Formularios --- */
.field {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  text-align: left;
}
.field label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--navy);
}
.field input,
.field textarea {
  padding: .85rem 1rem;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  background: var(--white);
  font-size: .96rem;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
  outline: none;
}
.field textarea { resize: vertical; min-height: 130px; }
.field-error {
  font-size: .78rem;
  color: #b3423f;
  min-height: 1em;
}
.field.has-error input,
.field.has-error textarea { border-color: #b3423f; }

.form-note {
  font-size: .8rem;
  color: var(--ink-muted);
}

.form-success {
  display: none;
  align-items: center;
  gap: .7rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-sm);
  background: #eaf5ee;
  color: #1f5c37;
  font-size: .9rem;
  font-weight: 500;
}
.form-success.is-visible { display: flex; }
.form-success svg { width: 20px; height: 20px; flex-shrink: 0; }

.form-error {
  display: none;
  align-items: center;
  gap: .7rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-sm);
  background: #fbeceb;
  color: #b3423f;
  font-size: .9rem;
  font-weight: 500;
}
.form-error.is-visible { display: flex; }
.form-error svg { width: 20px; height: 20px; flex-shrink: 0; }

/* Campo honeypot — invisible para personas, visible para bots de spam */
.hp-field {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  left: -9999px;
}

/* =============================================================
   5. SECCIONES
   ============================================================= */

/* --- HERO --- */
.hero {
  position: relative;
  padding-top: clamp(7.5rem, 14vw, 10.5rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
  background:
    radial-gradient(1100px 620px at 82% -10%, var(--accent-soft) 0%, rgba(234,240,252,0) 60%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 100%);
  overflow: clip;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
.hero__eyebrow { margin-bottom: 1.4rem; }
.hero__title {
  font-size: clamp(2.5rem, 6.4vw, 4.1rem);
  line-height: 1.06;
}
.hero__title em {
  font-style: italic;
  color: var(--accent);
}
.hero__lede {
  margin-top: 1.5rem;
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: var(--ink-muted);
  max-width: 52ch;
  line-height: 1.65;
}
.hero__actions {
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero__meta {
  margin-top: 2.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.9rem 2.6rem;
}
.hero__meta-item { }
.hero__meta-item strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--navy);
}
.hero__meta-item span {
  font-size: .78rem;
  color: var(--ink-muted);
  letter-spacing: .02em;
}

.hero__visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero__portrait {
  position: relative;
  width: min(360px, 78vw);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: var(--navy);
}
.hero__portrait img { width: 100%; }
.hero__badge {
  position: absolute;
  bottom: -1.1rem;
  left: -1.1rem;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: .95rem 1.2rem;
  display: flex;
  align-items: center;
  gap: .7rem;
  max-width: 230px;
}
.hero__badge svg { width: 26px; height: 26px; color: var(--accent); flex-shrink: 0; }
.hero__badge strong { display: block; font-size: .82rem; color: var(--navy); font-family: var(--sans); }
.hero__badge span { font-size: .72rem; color: var(--ink-muted); }
.hero__ring {
  position: absolute;
  top: -1.6rem; right: -1.4rem;
  width: 108px; height: 108px;
  border: 1.5px dashed var(--accent-line);
  border-radius: 50%;
}

.scroll-cue {
  position: absolute;
  bottom: 1.6rem;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  font-family: var(--mono);
  font-size: .65rem;
  letter-spacing: .12em;
  color: var(--ink-muted);
  text-transform: uppercase;
}
.scroll-cue__line {
  width: 1px; height: 34px;
  background: linear-gradient(var(--gray-300), transparent);
  animation: scrollCue 2.2s var(--ease-soft) infinite;
}
@keyframes scrollCue {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.001% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* --- Franja de organizaciones / marcas asociadas --- */
.press-strip {
  padding-block: 2.2rem;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}
.press-strip__label {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 1.1rem;
}
.press-strip__row {
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem 2.8rem;
  align-items: center;
}
.press-strip__row span {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--gray-500);
  letter-spacing: .01em;
  white-space: nowrap;
}

/* --- SOBRE MÍ --- */
.about {
  padding-block: var(--section-y);
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.about__intro p {
  font-size: 1.08rem;
  color: var(--ink-muted);
  max-width: 62ch;
}
.about__intro p + p { margin-top: 1.1rem; }
.about__intro p:first-of-type::first-letter {
  font-family: var(--serif);
  font-size: 3.4rem;
  color: var(--navy);
  float: left;
  line-height: .8;
  padding: .1rem .35rem 0 0;
  font-weight: 600;
}

.about__columns {
  margin-top: 2.6rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.2rem;
}
.about__block h3 {
  font-size: 1.02rem;
  font-family: var(--sans);
  font-weight: 700;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1.1rem;
}
.about__block h3 svg { width: 19px; height: 19px; color: var(--accent); }
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
  border-left: 2px solid var(--gray-200);
  padding-left: 1.3rem;
}
.timeline li { position: relative; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -1.75rem;
  top: .35rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.timeline strong { display: block; font-size: .95rem; color: var(--navy); }
.timeline span { font-size: .82rem; color: var(--ink-muted); }
.timeline time {
  display: block;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .04em;
  color: var(--accent);
  margin-bottom: .15rem;
}

.about__panel {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.about__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(480px 300px at 100% 0%, rgba(255,255,255,.06), transparent 60%);
  pointer-events: none;
}
.about__panel h3 {
  color: var(--white);
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
}
.spec-list { display: flex; flex-direction: column; gap: 1.35rem; }
.spec-list li {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  font-size: .92rem;
  color: rgba(255,255,255,.86);
  line-height: 1.5;
}
.spec-list svg { width: 17px; height: 17px; margin-top: .18rem; color: var(--accent-line); flex-shrink: 0; }

.about__stats {
  margin-top: 1.8rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(255,255,255,.15);
}
.about__stats strong { display: block; font-family: var(--serif); font-size: 1.7rem; }
.about__stats span { font-size: .74rem; color: rgba(255,255,255,.65); }

/* --- ARTÍCULOS (grid) --- */
.articles { padding-block: var(--section-y); background: var(--gray-50); }
.articles__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
.card-article {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease-out), box-shadow .45s var(--ease-out), border-color .45s var(--ease-out);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card-article:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gray-200);
}
.card-article__media {
  position: relative;
  aspect-ratio: 16/10.5;
  overflow: hidden;
  background: var(--navy);
}
.card-article__media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .7s var(--ease-out);
}
.card-article:hover .card-article__media img { transform: scale(1.06); }
.card-article__tag {
  position: absolute;
  top: .9rem; left: .9rem;
}
.card-article__body {
  padding: 1.5rem 1.4rem 1.7rem;
  display: flex;
  flex-direction: column;
  gap: .8rem;
  flex: 1;
}
.card-article__date {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--ink-muted);
}
.card-article__title {
  font-size: 1.18rem;
  line-height: 1.28;
}
.card-article__title a::after { content: ""; position: absolute; inset: 0; }
.card-article__title a { position: relative; }
.card-article {
  position: relative;
}
.card-article__excerpt {
  font-size: .92rem;
  color: var(--ink-muted);
  line-height: 1.55;
  flex: 1;
}
.card-article__foot {
  margin-top: .3rem;
  display: flex;
  align-items: center;
  gap: .45rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--accent);
}
.card-article__foot svg { width: 14px; height: 14px; transition: transform .3s var(--ease-out); }
.card-article:hover .card-article__foot svg { transform: translateX(4px); }

.articles__more { text-align: center; margin-top: 3rem; }

/* --- TEMAS DE INTERÉS --- */
.topics { padding-block: var(--section-y); }
.topics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}
.card-topic {
  padding: 2rem 1.7rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  background: var(--white);
  transition: transform .4s var(--ease-out), box-shadow .4s var(--ease-out), background .4s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.card-topic:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(180deg, var(--white), var(--accent-soft));
}
.card-topic__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  margin-bottom: 1.3rem;
  transition: background .4s ease;
}
.card-topic__icon svg { width: 25px; height: 25px; color: var(--accent); }
.card-topic:hover .card-topic__icon { background: var(--navy); }
.card-topic:hover .card-topic__icon svg { color: var(--white); }
.card-topic h3 { font-size: 1.12rem; margin-bottom: .55rem; }
.card-topic p { font-size: .88rem; color: var(--ink-muted); line-height: 1.55; }
.card-topic__count {
  margin-top: 1.1rem;
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--accent);
  text-transform: uppercase;
}

/* --- VIDEOS --- */
.videos {
  padding-block: var(--section-y);
  background: var(--navy);
  color: var(--white);
  position: relative;
  overflow: clip;
}
.videos::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(900px 500px at 10% 100%, rgba(255,255,255,.05), transparent 60%);
}
.videos .section-head h2, .videos .eyebrow { color: var(--white); }
.videos .eyebrow { color: var(--accent-line); }
.videos .eyebrow::before { background: var(--accent-line); }
.videos .section-head p { color: rgba(255,255,255,.65); }

.videos__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.7rem;
  position: relative;
}
.card-video {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  transition: transform .45s var(--ease-out), background .4s ease;
}
.card-video:hover { transform: translateY(-6px); background: rgba(255,255,255,.07); }
.card-video__media {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.card-video__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease-out); }
.card-video:hover .card-video__media img { transform: scale(1.05); }
.card-video__play {
  position: absolute; inset: 0;
  display: grid; place-items: center;
}
.card-video__play span {
  width: 58px; height: 58px;
  border-radius: 50%;
  background: rgba(255,255,255,.92);
  display: grid; place-items: center;
  box-shadow: var(--shadow-md);
  transition: transform .35s var(--ease-out);
}
.card-video:hover .card-video__play span { transform: scale(1.1); }
.card-video__play svg { width: 18px; height: 18px; color: var(--navy); margin-left: 3px; }
.card-video__duration {
  position: absolute;
  bottom: .7rem; right: .7rem;
  background: rgba(11,31,58,.78);
  color: var(--white);
  font-family: var(--mono);
  font-size: .68rem;
  padding: .25rem .5rem;
  border-radius: 5px;
}
.card-video__body { padding: 1.3rem 1.3rem 1.5rem; }
.card-video__cat {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-line);
}
.card-video__title { color: var(--white); font-size: 1.05rem; margin-top: .5rem; line-height: 1.32; }
.card-video__meta { margin-top: .6rem; font-size: .8rem; color: rgba(255,255,255,.55); }

.videos__channel {
  margin-top: 2.8rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding-top: 2.2rem;
  border-top: 1px solid rgba(255,255,255,.12);
}
.videos__channel p { color: rgba(255,255,255,.65); font-size: .92rem; max-width: 44ch; }

/* --- ARTÍCULO DESTACADO --- */
.featured { padding-block: var(--section-y); }
.featured__card {
  display: grid;
  grid-template-columns: 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-md);
}
.featured__media { position: relative; min-height: 260px; background: var(--navy); }
.featured__media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.featured__body {
  padding: clamp(2rem, 4vw, 3.4rem);
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}
.featured__tags { display: flex; gap: .6rem; flex-wrap: wrap; }
.featured__title { font-size: clamp(1.6rem, 3vw, 2.3rem); line-height: 1.16; }
.featured__excerpt { color: var(--ink-muted); font-size: 1.02rem; line-height: 1.65; }
.featured__byline {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-top: .3rem;
}
.featured__byline img {
  width: 42px; height: 42px; border-radius: 50%; flex-shrink: 0;
}
.featured__byline strong { font-size: .88rem; color: var(--navy); display: block; }
.featured__byline span { font-size: .78rem; color: var(--ink-muted); }
.featured__actions { margin-top: .5rem; }

/* --- RECURSOS --- */
.resources { padding-block: var(--section-y); background: var(--gray-50); }
.resources__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.4rem;
}
.resource-col h3 {
  display: flex;
  align-items: center;
  gap: .65rem;
  font-size: 1.05rem;
  font-family: var(--sans);
  font-weight: 700;
  margin-bottom: 1.4rem;
}
.resource-col h3 svg { width: 20px; height: 20px; color: var(--accent); }
.resource-list { display: flex; flex-direction: column; gap: 1.15rem; }
.resource-item {
  display: flex;
  gap: .95rem;
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: var(--white);
  border: 1px solid var(--gray-200);
  transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
}
.resource-item:hover { border-color: var(--accent-line); box-shadow: var(--shadow-sm); transform: translateX(3px); }
.resource-item__icon {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: var(--accent-soft);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.resource-item__icon svg { width: 18px; height: 18px; color: var(--accent); }
.resource-item strong { font-size: .92rem; color: var(--navy); display: block; line-height: 1.35; }
.resource-item span { font-size: .78rem; color: var(--ink-muted); display: block; margin-top: .2rem; }

/* --- NEWSLETTER --- */
.newsletter {
  padding-block: clamp(3.5rem, 8vw, 6rem);
}
.newsletter__card {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: clamp(2.2rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  overflow: hidden;
  color: var(--white);
}
.newsletter__card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(700px 380px at 90% 10%, rgba(255,255,255,.07), transparent 60%);
}
.newsletter__text { position: relative; }
.newsletter__text .eyebrow { color: var(--accent-line); }
.newsletter__text .eyebrow::before { background: var(--accent-line); }
.newsletter__text h2 { color: var(--white); font-size: clamp(1.7rem, 3vw, 2.3rem); margin-top: .6rem; }
.newsletter__text p { color: rgba(255,255,255,.68); margin-top: .9rem; max-width: 42ch; }
.newsletter__form {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .9rem;
}
.newsletter__row {
  display: flex;
  flex-direction: column;
  gap: .7rem;
}
.newsletter__row input {
  padding: .95rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.06);
  color: var(--white);
  font-size: .95rem;
}
.newsletter__row input::placeholder { color: rgba(255,255,255,.5); }
.newsletter__row input:focus { outline: none; border-color: var(--white); background: rgba(255,255,255,.1); }
.newsletter__privacy { font-size: .74rem; color: rgba(255,255,255,.5); }
.newsletter__result {
  display: none;
  font-size: .8rem;
  color: #ffb4a8;
  margin-top: -.2rem;
}
.newsletter__result.is-visible { display: block; }
.newsletter__result.is-success { color: #9be3b0; }
.newsletter__stats {
  display: flex;
  gap: 1.8rem;
  margin-top: .4rem;
}
.newsletter__stats div strong { display: block; font-family: var(--serif); font-size: 1.35rem; color: var(--white); }
.newsletter__stats div span { font-size: .72rem; color: rgba(255,255,255,.55); }

/* --- CONTACTO --- */
.contact { padding-block: var(--section-y); }
.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.contact__info p { color: var(--ink-muted); max-width: 46ch; line-height: 1.6; }
.contact__list { margin-top: 2rem; display: flex; flex-direction: column; gap: 1.3rem; }
.contact__list li { display: flex; align-items: flex-start; gap: .9rem; }
.contact__list .ico {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.contact__list .ico svg { width: 18px; height: 18px; color: var(--accent); }
.contact__list strong { display: block; font-size: .92rem; color: var(--navy); }
.contact__list span, .contact__list a { font-size: .86rem; color: var(--ink-muted); }
.contact__social { margin-top: 2.2rem; display: flex; gap: .8rem; }
.social-btn {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--gray-300);
  display: grid; place-items: center;
  transition: background .3s ease, border-color .3s ease, transform .3s ease;
}
.social-btn svg { width: 17px; height: 17px; color: var(--navy); }
.social-btn:hover { background: var(--navy); border-color: var(--navy); transform: translateY(-3px); }
.social-btn:hover svg { color: var(--white); }

.contact__form {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  box-shadow: var(--shadow-sm);
}
.contact__form form { display: flex; flex-direction: column; gap: 1.3rem; }
.contact__form .field-row { display: grid; grid-template-columns: 1fr; gap: 1.3rem; }

/* =============================================================
   6. FOOTER
   ============================================================= */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.75);
  padding-top: clamp(3.5rem, 7vw, 5.5rem);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.6rem;
  padding-bottom: 3rem;
}
.footer__brand { max-width: 320px; }
.footer__brand-row {
  display: flex; align-items: center; gap: .65rem;
  font-family: var(--serif); font-size: 1.15rem; color: var(--white); font-weight: 600;
}
.footer__brand-row img { width: 34px; height: 34px; border-radius: 50%; }
.footer__brand p { margin-top: 1.1rem; font-size: .88rem; line-height: 1.6; color: rgba(255,255,255,.55); }
.footer__social { margin-top: 1.4rem; display: flex; gap: .7rem; }
.footer__social a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  display: grid; place-items: center;
  transition: background .3s ease, transform .3s ease;
}
.footer__social a svg { width: 16px; height: 16px; }
.footer__social a:hover { background: rgba(255,255,255,.12); transform: translateY(-3px); }

.footer__col h4 {
  font-family: var(--sans); font-size: .82rem; letter-spacing: .06em; text-transform: uppercase;
  color: rgba(255,255,255,.9); margin-bottom: 1.2rem; font-weight: 600;
}
.footer__col ul { display: flex; flex-direction: column; gap: .8rem; }
.footer__col a { font-size: .9rem; color: rgba(255,255,255,.6); transition: color .25s ease; }
.footer__col a:hover { color: var(--white); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-block: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
  font-size: .8rem;
  color: rgba(255,255,255,.5);
}
.footer__bottom-links { display: flex; gap: 1.4rem; flex-wrap: wrap; justify-content: center; }
.footer__bottom-links a:hover { color: var(--white); }

.back-to-top {
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity .35s var(--ease-out), transform .35s var(--ease-out);
  z-index: 300;
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top svg { width: 18px; height: 18px; }

/* =============================================================
   7. PÁGINA DE ARTÍCULO (articulo.html)
   ============================================================= */
.article-hero {
  padding-top: clamp(7rem, 13vw, 9.5rem);
  padding-bottom: 3rem;
  background: var(--navy);
  color: var(--white);
  position: relative;
  overflow: clip;
}
.article-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(800px 460px at 15% 0%, rgba(255,255,255,.06), transparent 60%);
}
.article-hero__crumb {
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  display: flex; gap: .5rem; align-items: center; flex-wrap: wrap;
  position: relative;
}
.article-hero__crumb a:hover { color: var(--white); }
.article-hero__tags { display: flex; gap: .6rem; margin-top: 1.6rem; position: relative; }
.article-hero__title {
  color: var(--white);
  font-size: clamp(2rem, 5vw, 3.1rem);
  margin-top: 1.3rem;
  max-width: 20ch;
  position: relative;
}
.article-hero__lede {
  margin-top: 1.2rem;
  font-size: 1.1rem;
  color: rgba(255,255,255,.72);
  max-width: 62ch;
  position: relative;
}
.article-hero__byline {
  margin-top: 2.2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
  flex-wrap: wrap;
}
.article-hero__byline img { width: 48px; height: 48px; border-radius: 50%; }
.article-hero__byline strong { color: var(--white); font-size: .92rem; display: block; }
.article-hero__byline span { color: rgba(255,255,255,.55); font-size: .8rem; }

.article-media {
  margin-top: -2.5rem;
  position: relative;
  z-index: 2;
}
.article-media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16/8;
  object-fit: cover;
}

.article-layout {
  padding-block: var(--section-y);
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
.article-body {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--ink);
  max-width: 68ch;
}
.article-body p { margin-bottom: 1.4rem; }
.article-body h2 {
  font-size: 1.55rem;
  margin-top: 2.6rem;
  margin-bottom: 1.1rem;
}
.article-body h3 {
  font-size: 1.22rem;
  margin-top: 2rem;
  margin-bottom: .9rem;
}
.article-body blockquote {
  border-left: 3px solid var(--accent);
  padding: .3rem 0 .3rem 1.6rem;
  margin: 2.2rem 0;
  font-family: var(--serif);
  font-size: 1.28rem;
  font-style: italic;
  color: var(--navy);
  line-height: 1.5;
}
.article-body ul { list-style: disc; padding-left: 1.4rem; margin-bottom: 1.4rem; }
.article-body li { margin-bottom: .5rem; }
.article-body strong { color: var(--navy); }
.article-drop::first-letter {
  font-family: var(--serif);
  font-size: 3.6rem;
  color: var(--navy);
  float: left;
  line-height: .78;
  padding: .12rem .4rem 0 0;
  font-weight: 600;
}

.article-share {
  display: flex;
  align-items: center;
  gap: .9rem;
  margin: 2.6rem 0;
  padding: 1.2rem 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}
.article-share span { font-size: .82rem; color: var(--ink-muted); font-weight: 600; }

.article-author-box {
  margin-top: 3rem;
  padding: 1.8rem;
  border-radius: var(--radius-md);
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  display: flex;
  gap: 1.2rem;
}
.article-author-box img { width: 62px; height: 62px; border-radius: 50%; flex-shrink: 0; }
.article-author-box strong { color: var(--navy); font-size: 1rem; display: block; }
.article-author-box p { font-size: .9rem; color: var(--ink-muted); margin-top: .4rem; line-height: 1.55; }

.article-sidebar { display: flex; flex-direction: column; gap: 2rem; }
.sidebar-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 1.6rem;
}
.sidebar-card h4 {
  font-family: var(--sans);
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--navy);
  font-weight: 700;
  margin-bottom: 1.1rem;
}
.toc-list { display: flex; flex-direction: column; gap: .7rem; }
.toc-list a {
  font-size: .88rem;
  color: var(--ink-muted);
  display: block;
  padding-left: .8rem;
  border-left: 2px solid var(--gray-200);
  transition: color .25s ease, border-color .25s ease;
}
.toc-list a:hover { color: var(--accent); border-color: var(--accent); }

.related-list { display: flex; flex-direction: column; gap: 1.1rem; }
.related-item { display: flex; gap: .8rem; }
.related-item img { width: 66px; height: 52px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.related-item strong { font-size: .86rem; line-height: 1.35; color: var(--navy); display: block; }
.related-item span { font-size: .74rem; color: var(--ink-muted); }

/* =============================================================
   7.5 ELEMENTOS DE VERSIÓN PREVIEW (para presentación al cliente)
   ============================================================= */

/* Badge "Vista previa de desarrollo" — Hero */
.preview-badge {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .4rem .85rem;
  margin-bottom: 1rem;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.preview-badge svg { width: 14px; height: 14px; flex-shrink: 0; }

/* Tarjeta "Biblioteca completa en desarrollo" */
.library-note {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding: 1.25rem 1.5rem;
  border: 1px dashed var(--gray-300);
  border-radius: var(--radius-md);
  background: var(--gray-50);
}
.library-note__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
}
.library-note__icon svg { width: 20px; height: 20px; }
.library-note strong { display: block; font-family: var(--serif); font-size: 1.02rem; color: var(--ink); }
.library-note span { color: var(--ink-muted); font-size: .92rem; }

/* Sección "Próximamente" */
.coming-soon { padding: var(--section-y) 0; background: var(--navy); }
.coming-soon .eyebrow { color: var(--gold); }
.coming-soon .section-head h2 { color: var(--white); }
.coming-soon .section-head p { color: rgba(255, 255, 255, .68); }
.coming-soon__grid {
  list-style: none;
  display: grid;
  gap: .9rem;
  grid-template-columns: 1fr;
}
.coming-soon__grid li {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  color: var(--white);
  font-weight: 500;
  transition: background-color .3s var(--ease-out), border-color .3s var(--ease-out);
}
.coming-soon__grid li:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .22); }
.coming-soon__check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy);
}
.coming-soon__check svg { width: 14px; height: 14px; }

/* Notas de demo (Sobre mí / Contacto) */
.demo-note {
  display: inline-block;
  margin-bottom: 1rem;
  padding: .5rem .9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .82rem;
  font-weight: 500;
}
.demo-note--form { margin-bottom: 1.25rem; }

/* Línea de versión preliminar — Footer */
.footer__preview-note {
  padding-top: 0;
  padding-bottom: 1.5rem;
  text-align: center;
}
.footer__preview-note span {
  display: inline-block;
  font-size: .78rem;
  color: var(--gray-500);
  font-style: italic;
}

/* =============================================================
   8. RESPONSIVE
   ============================================================= */
@media (min-width: 540px) {
  .about__columns { grid-template-columns: 1fr 1fr; }
  .contact__form .field-row { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1.2fr 1fr 1fr; }
  .newsletter__row { flex-direction: row; }
  .newsletter__row input[type="email"] { flex: 1; }
}

@media (min-width: 720px) {
  .articles__grid { grid-template-columns: repeat(2, 1fr); }
  .topics__grid { grid-template-columns: repeat(2, 1fr); }
  .videos__grid { grid-template-columns: repeat(2, 1fr); }
  .resources__grid { grid-template-columns: repeat(3, 1fr); }
  .featured__card { grid-template-columns: 1fr 1fr; }
  .featured__media { min-height: 100%; }
  .newsletter__card { grid-template-columns: 1.1fr 1fr; }
  .scroll-cue { display: flex; }
  .coming-soon__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 960px) {
  .nav__links { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav__toggle { display: none; }
  .hero__grid { grid-template-columns: 1.15fr .85fr; }
  .about__grid { grid-template-columns: 1.5fr 1fr; }
  .articles__grid { grid-template-columns: repeat(3, 1fr); }
  .topics__grid { grid-template-columns: repeat(3, 1fr); }
  .videos__grid { grid-template-columns: repeat(3, 1fr); }
  .contact__grid { grid-template-columns: .8fr 1.2fr; }
  .article-layout { grid-template-columns: 2fr 1fr; }
  .article-sidebar { position: sticky; top: 6.5rem; align-self: start; }
  .coming-soon__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1280px) {
  .hero__lede { font-size: 1.25rem; }
}

/* =============================================================
   9. REDUCED MOTION — solo efectos intrusivos
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scroll-cue__line { animation: none; }
  .reveal, .reveal-stagger > * {
    transition-duration: .2s;
  }
}