/* =========================================================
   Oswaldo Aguilar Castro — Personal Site
   Black & White editorial aesthetic with warm sepia accent
   ========================================================= */

:root {
  --black: #0a0a0a;
  --ink:   #141414;
  --slate: #2a2a2a;
  --gray:  #6a6a6a;
  --mist:  #cfcfcf;
  --paper: #f5f3ee;
  --bone:  #ebe8e0;
  --white: #ffffff;
  --gold:  #b08d57;
  --gold-soft: #d6b88a;

  --serif: 'Cormorant Garamond', 'Georgia', serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container: 1180px;
  --gap: clamp(1rem, 2vw, 2rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'kern', 'liga', 'ss01';
}

img { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

p { margin: 0 0 1em; }

::selection { background: var(--ink); color: var(--paper); }

/* =====================  TYPOGRAPHY  ===================== */

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--black);
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(3rem, 7vw, 6rem); font-weight: 600; letter-spacing: -0.025em; }
h2 { font-size: clamp(2rem, 4.2vw, 3.4rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }

.eyebrow,
.section__eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
  display: inline-block;
}

.section__title {
  max-width: 22ch;
  margin-bottom: 0.4em;
}

.section__lede {
  max-width: 60ch;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.4vw, 1.4rem);
  font-style: italic;
  color: var(--slate);
  margin-bottom: 3rem;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* =====================  NAV  ===================== */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(245, 243, 238, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.nav--scrolled {
  border-bottom-color: rgba(20, 20, 20, 0.08);
  background: rgba(245, 243, 238, 0.96);
}

.nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand-mark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  color: var(--black);
  border: 1.5px solid var(--black);
  padding: 6px 12px;
  display: inline-block;
}

.nav__menu {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0; padding: 0;
}

.nav__menu a {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--slate);
  position: relative;
  padding-bottom: 2px;
}

.nav__menu a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--black);
  transition: width .3s var(--ease);
}

.nav__menu a:hover { color: var(--black); }
.nav__menu a:hover::after { width: 100%; }

.nav__menu-cta {
  background: var(--black);
  color: var(--paper) !important;
  padding: 8px 14px;
  border-radius: 2px;
}
.nav__menu-cta::after { display: none; }
.nav__menu-cta:hover {
  background: var(--gold);
  color: var(--ink) !important;
}

.nav__toggle {
  display: none;
  background: none;
  border: 0;
  width: 32px;
  height: 28px;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
  padding: 4px 0;
}

.nav__toggle span {
  height: 1.5px;
  background: var(--black);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}

.nav--open .nav__toggle span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav--open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav--open .nav__toggle span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 880px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: var(--paper);
    flex-direction: column;
    gap: 0;
    border-top: 1px solid rgba(20,20,20,0.08);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform .3s var(--ease), opacity .2s var(--ease);
  }
  .nav--open .nav__menu {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__menu li {
    border-bottom: 1px solid rgba(20,20,20,0.06);
  }
  .nav__menu a {
    display: block;
    padding: 1.1rem clamp(1.25rem, 4vw, 3rem);
    font-size: 1rem;
  }
}

/* =====================  HERO  ===================== */

.hero {
  position: relative;
  padding: 140px 0 80px;
  background: var(--paper);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(176,141,87,0.08), transparent 60%),
    linear-gradient(to bottom, transparent 0%, rgba(20,20,20,0.025) 100%);
  pointer-events: none;
}

.hero__grid {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

@media (max-width: 880px) {
  .hero { padding: 120px 0 60px; }
  .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

.hero__title {
  font-family: var(--serif);
  font-style: normal;
  font-weight: 600;
  margin-top: 0.2em;
  margin-bottom: 0.6em;
}

.hero__tagline {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.4rem, 1.9vw, 1.75rem);
  font-weight: 500;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 1.4rem;
  padding-left: 1.2rem;
  border-left: 3px solid var(--gold);
  max-width: 30ch;
}

.hero__lede {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  color: var(--slate);
  max-width: 48ch;
  margin-bottom: 2rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__cta--three .btn {
  padding: 0.7rem 1.1rem;
  font-size: 0.78rem;
}

.hero__portrait figure {
  margin: 0;
  position: relative;
}

.hero__portrait img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
  background: var(--ink);
  box-shadow:
    0 1px 0 rgba(20,20,20,0.04),
    0 30px 60px -20px rgba(20,20,20,0.35);
}

.hero__portrait figcaption {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray);
  margin-top: 1rem;
  text-align: center;
}

.hero__scroll {
  display: flex;
  justify-content: center;
  margin-top: 4rem;
}
.hero__scroll span {
  display: block;
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, var(--ink));
  animation: scrollHint 2.4s ease-in-out infinite;
}

@keyframes scrollHint {
  0%, 100% { transform: scaleY(0.4); transform-origin: top; }
  50%      { transform: scaleY(1);   transform-origin: top; }
}

/* =====================  BUTTONS  ===================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--black);
  cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease), transform .2s var(--ease);
}

.btn--primary {
  background: var(--black);
  color: var(--paper);
}
.btn--primary:hover {
  background: transparent;
  color: var(--black);
}

.btn--ghost {
  background: transparent;
  color: var(--black);
}
.btn--ghost:hover {
  background: var(--black);
  color: var(--paper);
}

/* =====================  SECTIONS  ===================== */

.section {
  padding: clamp(5rem, 10vw, 9rem) 0;
  position: relative;
}

.section--dark {
  background: var(--ink);
  color: var(--bone);
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--paper);
}

.section--dark .section__lede,
.section--dark .timeline__points,
.section--dark p {
  color: var(--mist);
}

.section--dark .section__eyebrow {
  color: var(--gold-soft);
}

/* =====================  ABOUT  ===================== */

.about__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: 3rem;
  align-items: start;
}

.about__copy p {
  font-size: 1.05rem;
  color: var(--slate);
  margin-bottom: 1.4em;
}

.about__copy strong {
  color: var(--black);
  font-weight: 600;
}

.stats {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  border-top: 1px solid var(--mist);
  border-left: 1px solid var(--mist);
}

.stats li {
  padding: 1.6rem 1.2rem;
  border-right: 1px solid var(--mist);
  border-bottom: 1px solid var(--mist);
  text-align: center;
}

.stats__num {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 3.5vw, 3rem);
  font-weight: 600;
  color: var(--black);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stats__label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}

@media (max-width: 880px) {
  .about__grid { grid-template-columns: 1fr; }
}

/* =====================  TIMELINE  ===================== */

.timeline {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  border-left: 1px solid rgba(214, 184, 138, 0.35);
}

.timeline__item {
  padding: 0 0 3rem 2.5rem;
  position: relative;
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: -5px; top: 6px;
  width: 9px; height: 9px;
  background: var(--gold);
  border-radius: 50%;
}

.timeline__years {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin: 0 0 0.4rem;
}

.timeline__role {
  margin: 0 0 0.2em;
  color: var(--paper);
  font-size: clamp(1.3rem, 2vw, 1.6rem);
}

.timeline__org {
  font-family: var(--serif);
  font-style: italic;
  color: var(--mist);
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.timeline__points {
  list-style: none;
  padding: 0;
  margin: 0;
}

.timeline__points li {
  position: relative;
  padding-left: 1.2rem;
  margin-bottom: 0.7rem;
  font-size: 0.97rem;
  line-height: 1.6;
}

.timeline__points li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--gold-soft);
  font-weight: 600;
}

.timeline__points strong {
  color: var(--paper);
  font-weight: 600;
}

.formation {
  margin-top: 2rem;
  padding-top: 3rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.formation h3 {
  margin-bottom: 1.2rem;
}

.formation ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.formation li {
  padding-left: 1.2rem;
  position: relative;
  color: var(--mist);
  font-size: 0.97rem;
}

.formation li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gold-soft);
}

/* =====================  CREDENTIAL CARD  ===================== */

.credential {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 2.4rem;
  padding: 2rem;
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(214, 184, 138, 0.18);
  align-items: center;
}

.credential__cert {
  display: block;
  position: relative;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 14px 30px -12px rgba(0,0,0,0.4);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.credential__cert:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 40px -12px rgba(0,0,0,0.5);
}

.credential__cert img {
  width: 100%;
  display: block;
}

.credential__eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin: 0 0 0.8rem;
}

.credential__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1.2;
  color: var(--paper);
  margin: 0 0 1.5rem;
}

.credential__meta {
  margin: 0 0 1.6rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1.6rem;
}

.credential__meta > div {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 0.6rem;
}

.credential__meta dt {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin-bottom: 0.2rem;
}

.credential__meta dd {
  margin: 0;
  font-size: 0.92rem;
  color: var(--mist);
  word-break: break-word;
}

.credential__meta code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0;
  color: var(--bone);
}

.credential__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.credential__btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.2rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid rgba(214, 184, 138, 0.5);
  color: var(--bone);
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.credential__btn:hover {
  background: rgba(214, 184, 138, 0.12);
  border-color: var(--gold-soft);
}

.credential__btn--primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.credential__btn--primary:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: var(--ink);
}

@media (max-width: 760px) {
  .credential {
    grid-template-columns: 1fr;
    gap: 1.6rem;
    padding: 1.6rem;
  }
  .credential__meta {
    grid-template-columns: 1fr;
  }
}

/* =====================  BOOKS GRID  ===================== */

.books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2.5rem 2rem;
  margin-top: 3rem;
}

.book-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid rgba(20,20,20,0.08);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}

.section--dark .book-card {
  background: #1c1c1c;
  border-color: rgba(255,255,255,0.08);
}

.book-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 40px -15px rgba(0,0,0,0.25);
}

.book-card__cover {
  aspect-ratio: 2/3;
  overflow: hidden;
  background: linear-gradient(135deg, var(--bone), var(--mist));
  position: relative;
}

.section--dark .book-card__cover {
  background: linear-gradient(135deg, #2a2a2a, #1a1a1a);
}

.book-card__cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(8%);
  transition: transform .6s var(--ease), filter .35s var(--ease);
}

.book-card:hover .book-card__cover img {
  transform: scale(1.04);
  filter: grayscale(0%);
}

.book-card__body {
  padding: 1.6rem 1.5rem 1.8rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.book-card__body h3 {
  margin: 0 0 0.2em;
}

.section--dark .book-card__body h3 {
  color: var(--paper);
}

.book-card__series {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 1rem;
}

.book-card__body p {
  font-size: 0.95rem;
  color: var(--slate);
  flex: 1;
}

.section--dark .book-card__body p {
  color: var(--mist);
}

.book-card__links {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid rgba(20,20,20,0.08);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
}

.section--dark .book-card__links {
  border-top-color: rgba(255,255,255,0.08);
}

.book-card__links a {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  position: relative;
}

.book-card__links a::after {
  content: '↗';
  margin-left: 4px;
  font-size: 0.7rem;
  color: var(--gold);
  transition: transform .25s var(--ease);
  display: inline-block;
}

.book-card__links a:hover {
  border-bottom-color: var(--ink);
}
.book-card__links a:hover::after {
  transform: translate(2px, -2px);
}

.section--dark .book-card__links a {
  color: var(--bone);
}
.section--dark .book-card__links a:hover {
  border-bottom-color: var(--bone);
}

.amazon-author {
  text-align: center;
  margin-top: 3rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--mist);
}

.amazon-author a {
  color: var(--gold-soft);
  border-bottom: 1px solid rgba(214,184,138,0.4);
}

.amazon-author a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* =====================  ARTICLES  ===================== */

.section--blog {
  background: var(--bone);
}

.articles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.article-card {
  background: var(--paper);
  padding: 2rem 1.8rem;
  border: 1px solid rgba(20,20,20,0.08);
  display: flex;
  flex-direction: column;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: rgba(20,20,20,0.2);
}

.article-card__date {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 0.8rem;
}

.article-card h3 {
  margin: 0 0 0.6em;
}

.article-card p {
  color: var(--slate);
  font-size: 0.97rem;
  flex: 1;
}

.article-card__link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  align-self: flex-start;
  opacity: 0.5;
  cursor: not-allowed;
}

/* =====================  HERITAGE  ===================== */

.section--heritage {
  background: var(--paper);
}

.heritage-grid {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: rgba(20,20,20,0.1);
  border: 1px solid rgba(20,20,20,0.1);
}

.heritage-card {
  background: var(--paper);
  padding: 2rem 1.8rem;
  transition: background .3s var(--ease);
}

.heritage-card:hover {
  background: var(--bone);
}

.heritage-card--wide {
  grid-column: 1 / -1;
}

.heritage-card--portrait {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  gap: 2.4rem;
  align-items: center;
}

.heritage-card__portrait {
  margin: 0;
  position: relative;
}

.heritage-card__portrait:has(img.img--missing) {
  aspect-ratio: 4/5;
}

.heritage-card__portrait img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.05);
  background: var(--ink);
  box-shadow: 0 14px 30px -12px rgba(20,20,20,0.35);
}

.heritage-card__portrait figcaption {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
  margin-top: 0.7rem;
  text-align: center;
}

.heritage-card__copy h3 {
  margin-top: 0;
}

@media (max-width: 720px) {
  .heritage-card--portrait {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }
  .heritage-card__portrait {
    max-width: 220px;
    margin: 0 auto;
  }
}

.heritage-card h3 {
  margin: 0 0 0.2em;
  font-style: italic;
}

.heritage-card__role {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 1rem;
}

.heritage-card p {
  margin: 0;
  font-size: 0.97rem;
  color: var(--slate);
}

/* =====================  RECOGNITION  ===================== */

/* Recognition highlights — visually prominent row of institutional cards */

.section--recognition .section__lede {
  color: var(--mist);
}

.recognition-highlights {
  list-style: none;
  margin: 3rem 0 4rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: rgba(214, 184, 138, 0.18);
  border: 1px solid rgba(214, 184, 138, 0.18);
}

.recognition-highlight {
  background: var(--ink);
  padding: 1.8rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  position: relative;
  transition: background .3s var(--ease);
}

.recognition-highlight:hover {
  background: #1c1c1c;
}

.recognition-highlight__source {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--paper);
  margin: 0;
  line-height: 1.25;
}

.recognition-highlight__detail {
  font-size: 0.88rem;
  color: var(--mist);
  margin: 0;
  flex: 1;
}

.recognition-highlight__year {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin: 0;
  padding-top: 0.6rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.recognition-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: 3rem;
}

.recognition-grid h3 {
  margin-bottom: 1.4rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  color: var(--paper);
}

.recognition-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.recognition-grid li {
  padding: 1rem 0 1rem 1.2rem;
  font-size: 0.97rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--mist);
  position: relative;
}

.recognition-grid li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--gold-soft);
  font-weight: 600;
}

.recognition-grid strong {
  color: var(--paper);
  font-weight: 600;
}

@media (max-width: 720px) {
  .recognition-grid { grid-template-columns: 1fr; }
}

/* =====================  CONTACT  ===================== */

.section--contact {
  background: var(--paper);
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 3rem 0 0;
  max-width: 720px;
}

.contact-list li {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 1.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid rgba(20,20,20,0.1);
  align-items: center;
}

.contact-list__label {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}

.contact-list a {
  color: var(--ink);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  font-size: 1.05rem;
}

.contact-list a:hover {
  border-bottom-color: var(--ink);
}

@media (max-width: 600px) {
  .contact-list li {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

/* =====================  FOOTER  ===================== */

.footer {
  background: var(--ink);
  color: var(--mist);
  padding: 4rem 0 3rem;
  text-align: center;
}

.footer__motto {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--paper);
  margin: 0 0 0.6em;
  letter-spacing: 0.01em;
}

.footer__copy {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 0;
}

/* =====================  REVEAL ON SCROLL  ===================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =====================  IMAGE FALLBACK  ===================== */

img.img--missing {
  visibility: hidden;
}

.book-card__cover:has(img.img--missing)::after,
.hero__portrait figure:has(img.img--missing)::after,
.heritage-card__portrait:has(img.img--missing)::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0,
      transparent 22px,
      rgba(20,20,20,0.04) 22px,
      rgba(20,20,20,0.04) 23px
    ),
    linear-gradient(135deg, var(--bone), var(--mist));
}

.section--dark .book-card__cover:has(img.img--missing)::after {
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0,
      transparent 22px,
      rgba(255,255,255,0.04) 22px,
      rgba(255,255,255,0.04) 23px
    ),
    linear-gradient(135deg, #2a2a2a, #1a1a1a);
}

.hero__portrait figure { position: relative; }
.hero__portrait figure:has(img.img--missing)::after {
  background:
    repeating-linear-gradient(
      45deg,
      transparent 0,
      transparent 28px,
      rgba(20,20,20,0.06) 28px,
      rgba(20,20,20,0.06) 29px
    ),
    linear-gradient(135deg, #1a1a1a, #0a0a0a);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  html { scroll-behavior: auto; }
}

/* =====================  HIGHLIGHTS (HOME)  ===================== */

.highlights {
  background: var(--bone);
  padding: clamp(4rem, 7vw, 6rem) 0;
  border-top: 1px solid rgba(20,20,20,0.06);
}

.highlights__title {
  max-width: 24ch;
  margin-bottom: 2.5rem;
}

.highlights__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background: rgba(20,20,20,0.1);
  border: 1px solid rgba(20,20,20,0.1);
}

.highlight {
  background: var(--paper);
  padding: 1.8rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: background .3s var(--ease);
}

.highlight:hover {
  background: #fcfaf5;
}

.highlight__name {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 600;
  font-style: italic;
  color: var(--black);
  margin: 0;
  line-height: 1.15;
}

.highlight__detail {
  font-size: 0.92rem;
  color: var(--slate);
  margin: 0;
  flex: 1;
}

.highlight__cta {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(20,20,20,0.08);
  transition: color .2s var(--ease);
}

a.highlight__cta:hover {
  color: var(--ink);
}

.highlight__cta--static {
  color: var(--gray);
}

/* =====================  CONFERENCIAS PAGE  ===================== */

.conf-hero {
  padding: 160px 0 80px;
  background: var(--paper);
  position: relative;
  overflow: hidden;
}

.conf-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 90% 10%, rgba(176,141,87,0.12), transparent 65%),
    linear-gradient(to bottom, transparent 0%, rgba(20,20,20,0.03) 100%);
  pointer-events: none;
}

.conf-hero .container {
  position: relative;
}

.conf-hero__title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0.4em 0 0.6em;
  max-width: 16ch;
}

.conf-hero__lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.15rem, 1.5vw, 1.5rem);
  line-height: 1.4;
  color: var(--slate);
  max-width: 58ch;
  margin: 0 0 2rem;
  padding-left: 1.2rem;
  border-left: 2px solid var(--gold);
}

.conf-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 3rem;
}

.conf-hero__forums {
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(20,20,20,0.1);
  max-width: 60ch;
}

.conf-hero__forums strong {
  color: var(--ink);
  font-weight: 600;
}

/* Conference cards */
.conf-section {
  background: var(--bone);
}

.conf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  gap: 1.4rem;
  margin-top: 3rem;
}

.conf-card {
  background: var(--paper);
  padding: 2.4rem 2.2rem;
  border: 1px solid rgba(20,20,20,0.08);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.conf-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 40px -20px rgba(20,20,20,0.18);
}

.conf-card--capstone {
  background: var(--ink);
  color: var(--bone);
  border-color: var(--gold);
}

.conf-card--capstone h3,
.conf-card--capstone .conf-card__label,
.conf-card--curated h3 {
  color: var(--paper);
}

.conf-card--capstone .conf-card__angle,
.conf-card--capstone .conf-card__number {
  color: var(--gold-soft);
}

.conf-card--capstone .conf-card__sub,
.conf-card--capstone .conf-card__val {
  color: var(--mist);
}

.conf-card--curated {
  background: linear-gradient(140deg, #1a1a1a 0%, #0f0f0f 100%);
  color: var(--bone);
  border-color: rgba(214, 184, 138, 0.3);
}

.conf-card--curated .conf-card__angle,
.conf-card--curated .conf-card__number {
  color: var(--gold-soft);
}

.conf-card--curated .conf-card__sub,
.conf-card--curated .conf-card__val,
.conf-card--curated .conf-card__label {
  color: var(--mist);
}

.conf-card__number {
  font-family: var(--serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
  margin: 0;
}

.conf-card__angle {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0;
}

.conf-card__title {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 1.8vw, 1.7rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--black);
  margin: 0;
}

.conf-card__sub {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--slate);
  margin: 0;
  flex: 1;
}

.conf-card__meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(20,20,20,0.08);
}

.conf-card--capstone .conf-card__meta,
.conf-card--curated .conf-card__meta {
  border-top-color: rgba(255,255,255,0.1);
}

.conf-card__label {
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 0.3rem;
  font-weight: 500;
}

.conf-card__val {
  font-size: 0.86rem;
  line-height: 1.4;
  color: var(--slate);
  margin: 0;
}

.conf-card__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(20,20,20,0.08);
}

.conf-card--capstone .conf-card__cta-row,
.conf-card--curated .conf-card__cta-row {
  border-top-color: rgba(255,255,255,0.1);
}

.conf-card__cta {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  transition: color .2s var(--ease);
}

.conf-card--capstone .conf-card__cta,
.conf-card--curated .conf-card__cta {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

.conf-card__cta:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.conf-card__badge {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ink);
  background: var(--gold);
  padding: 4px 10px;
}

.conf-card__note {
  font-size: 0.82rem;
  font-style: italic;
  line-height: 1.4;
  color: var(--mist);
  margin: 0;
}

/* Proof grid */
.conf-proof__grid {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: rgba(214, 184, 138, 0.18);
  border: 1px solid rgba(214, 184, 138, 0.18);
}

.conf-proof__grid li {
  background: var(--ink);
  padding: 1.8rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: background .3s var(--ease);
}

.conf-proof__grid li:hover {
  background: #1c1c1c;
}

.conf-proof__year {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin: 0;
  font-weight: 500;
}

.conf-proof__grid h3 {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--paper);
  margin: 0;
  line-height: 1.2;
}

.conf-proof__grid p {
  font-size: 0.9rem;
  color: var(--mist);
  margin: 0;
  flex: 1;
}

.conf-proof__link {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-soft);
  padding-top: 0.7rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-weight: 500;
}

a.conf-proof__link:hover {
  color: var(--paper);
}

.conf-proof__link--static {
  color: var(--gray);
}

/* Formats list */
.conf-formats__list {
  list-style: none;
  margin: 3rem 0 1.4rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.8rem;
}

.conf-formats__list li {
  padding: 1.6rem 0 0;
  border-top: 1px solid rgba(20,20,20,0.15);
}

.conf-formats__list h3 {
  margin: 0 0 0.4em;
  font-style: italic;
}

.conf-formats__list p {
  font-size: 0.95rem;
  color: var(--slate);
  margin: 0;
}

.conf-formats__note {
  font-style: italic;
  color: var(--gray);
  text-align: center;
  margin-top: 2rem;
  font-size: 0.9rem;
}

/* Reservation form */
.conf-reserva .section__lede {
  color: var(--mist);
}

.conf-form {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.conf-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}

.conf-form label {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.conf-form label span {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-soft);
  font-weight: 500;
}

.conf-form input,
.conf-form select,
.conf-form textarea {
  font-family: var(--sans);
  font-size: 1rem;
  color: var(--paper);
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.25);
  padding: 0.6rem 0;
  transition: border-color .2s var(--ease);
}

.conf-form input:focus,
.conf-form select:focus,
.conf-form textarea:focus {
  outline: none;
  border-bottom-color: var(--gold);
}

.conf-form select {
  appearance: none;
  background:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23d6b88a' d='M6 8L0 0h12z'/></svg>")
    no-repeat right 0.4rem center;
}

.conf-form select option {
  background: var(--ink);
  color: var(--paper);
}

.conf-form textarea {
  border: 1px solid rgba(255,255,255,0.25);
  padding: 0.8rem;
  resize: vertical;
  font-family: var(--sans);
}

.conf-form__submit {
  margin-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
}

.conf-form__submit .btn--primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.conf-form__submit .btn--primary:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: var(--ink);
}

.conf-form__submit p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--mist);
}

.conf-form__submit a {
  color: var(--gold-soft);
  border-bottom: 1px solid rgba(214,184,138,0.4);
  padding-bottom: 1px;
}

.conf-form__submit a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

@media (max-width: 720px) {
  .conf-form__row { grid-template-columns: 1fr; }
  .conf-card__meta { grid-template-columns: 1fr; }
  .conf-hero__title { font-size: clamp(2rem, 8vw, 3rem); }
}

/* =====================  EXECUTIVE OPPORTUNITIES CTA  ===================== */

.exec-cta {
  margin-top: 3rem;
  padding: 2.2rem 2.4rem;
  background: linear-gradient(135deg, rgba(176,141,87,0.12) 0%, rgba(214,184,138,0.06) 100%);
  border: 1px solid rgba(214, 184, 138, 0.3);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.exec-cta__eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-soft);
  font-weight: 500;
  margin: 0 0 0.6rem;
}

.exec-cta__title {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 1.8vw, 1.6rem);
  color: var(--paper);
  margin: 0 0 0.6rem;
}

.exec-cta__lede {
  color: var(--mist);
  margin: 0;
  font-size: 0.95rem;
  max-width: 50ch;
}

.exec-cta .btn {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  white-space: nowrap;
}

.exec-cta .btn:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: var(--ink);
}

@media (max-width: 720px) {
  .exec-cta {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
}

/* =====================  CONFERENCE DETAIL PAGES  ===================== */

.conf-detail-hero {
  padding: 140px 0 70px;
  background: var(--paper);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(20,20,20,0.08);
}

.conf-detail-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 92% 8%, rgba(176,141,87,0.1), transparent 60%),
    linear-gradient(to bottom, transparent 0%, rgba(20,20,20,0.025) 100%);
  pointer-events: none;
}

.conf-detail-hero .container { position: relative; }

.conf-detail-hero__breadcrumb {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0 0 1.5rem;
}

.conf-detail-hero__breadcrumb a {
  color: var(--gold);
  border-bottom: 1px solid rgba(176,141,87,0.4);
  padding-bottom: 1px;
  transition: color .2s var(--ease);
}

.conf-detail-hero__breadcrumb a:hover { color: var(--ink); }

.conf-detail-hero__badge {
  display: inline-block;
  padding: 2px 8px;
  background: var(--gold);
  color: var(--ink);
  margin-left: 6px;
}

.conf-detail-hero__title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4.4vw, 3.6rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.4rem;
  max-width: 24ch;
}

.conf-detail-hero__sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.1rem, 1.4vw, 1.4rem);
  line-height: 1.45;
  color: var(--slate);
  max-width: 65ch;
  margin: 0 0 1.4rem;
}

.conf-detail-hero__sub strong {
  font-style: normal;
  font-weight: 600;
  color: var(--ink);
}

.conf-detail-hero__proof,
.conf-detail-hero__curated-note {
  font-size: 0.95rem;
  color: var(--slate);
  max-width: 60ch;
  padding: 1rem 1.2rem;
  background: rgba(176,141,87,0.08);
  border-left: 3px solid var(--gold);
  margin: 0 0 2rem;
}

.conf-detail-hero__curated-note strong {
  color: var(--ink);
  font-weight: 600;
}

.conf-detail-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

/* Capstone variant — dark hero */
.conf-detail-hero--capstone {
  background: var(--ink);
}

.conf-detail-hero--capstone::before {
  background: radial-gradient(ellipse at 90% 10%, rgba(214,184,138,0.18), transparent 60%);
}

.conf-detail-hero--capstone .conf-detail-hero__title { color: var(--paper); }
.conf-detail-hero--capstone .conf-detail-hero__sub { color: var(--mist); }
.conf-detail-hero--capstone .conf-detail-hero__sub strong { color: var(--paper); }
.conf-detail-hero--capstone .conf-detail-hero__proof { color: var(--mist); background: rgba(214,184,138,0.06); }
.conf-detail-hero--capstone .conf-detail-hero__breadcrumb { color: var(--gold-soft); }
.conf-detail-hero--capstone .conf-detail-hero__breadcrumb a { color: var(--gold-soft); }
.conf-detail-hero--capstone .conf-detail-hero__breadcrumb a:hover { color: var(--paper); }

/* Curated variant — subtle warm */
.conf-detail-hero--curated {
  background: linear-gradient(180deg, var(--bone) 0%, var(--paper) 100%);
}

/* Detail two-block (tesis + promesa) */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  margin-top: 2.5rem;
}

.detail-block__body {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--slate);
}

.detail-block__body strong { color: var(--ink); font-weight: 600; }

@media (max-width: 720px) {
  .detail-grid { grid-template-columns: 1fr; }
}

/* Opening quote */
.detail-opening .opening-quote {
  margin: 2.5rem 0 0;
  padding: 0 0 0 2rem;
  border-left: 3px solid var(--gold);
  max-width: 75ch;
}

.opening-quote p {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  line-height: 1.4;
  color: var(--paper);
  margin: 0 0 1.2rem;
}

.opening-quote__inner {
  border-left: 2px solid rgba(214,184,138,0.4);
  padding-left: 1.2rem;
  font-style: normal !important;
  color: var(--gold-soft) !important;
  font-size: clamp(1.1rem, 1.6vw, 1.4rem) !important;
}

.opening-quote footer {
  font-family: var(--sans);
  font-style: normal;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin-top: 0.6rem;
}

/* Act list (5 marcos, 12 tech, 6 preguntas) */
.act-list {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.act-list li {
  background: var(--paper);
  padding: 1.6rem 1.5rem;
  border: 1px solid rgba(20,20,20,0.08);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.section--dark .act-list li {
  background: #1c1c1c;
  border-color: rgba(255,255,255,0.08);
}

.act-list__act {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
  font-weight: 500;
}

.act-list h3 {
  margin: 0;
  font-size: 1.15rem;
  font-style: italic;
}

.section--dark .act-list h3 { color: var(--paper); }

.act-list p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--slate);
}

.section--dark .act-list p { color: var(--mist); }

/* Audience grid (4 cards) */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1px;
  margin-top: 2.5rem;
  background: rgba(20,20,20,0.1);
  border: 1px solid rgba(20,20,20,0.1);
}

.section--dark .audience-grid {
  background: rgba(214,184,138,0.15);
  border-color: rgba(214,184,138,0.15);
}

.audience-card {
  background: var(--paper);
  padding: 1.6rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.section--dark .audience-card {
  background: var(--ink);
}

.audience-card__tier {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0;
}

.audience-card h3 {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.15rem;
  margin: 0;
  line-height: 1.2;
}

.section--dark .audience-card h3 { color: var(--paper); }

.audience-card p {
  font-size: 0.9rem;
  color: var(--slate);
  margin: 0;
  flex: 1;
}

.section--dark .audience-card p { color: var(--mist); }

.audience-card strong { color: var(--ink); font-weight: 600; }
.section--dark .audience-card strong { color: var(--paper); }

/* Tech grid (Conf 3 — 12 technologies) */
.tech-grid {
  list-style: none;
  margin: 3rem 0 1rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.tech-grid li {
  background: var(--paper);
  border: 1px solid rgba(20,20,20,0.08);
  padding: 1.4rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tech-grid__num {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
}

.tech-grid h3 {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.1rem;
  margin: 0;
}

.tech-grid p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--slate);
}

.tech-grid__closer {
  margin-top: 2rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  text-align: center;
  color: var(--slate);
}

.tech-grid__closer strong {
  font-style: normal;
  color: var(--ink);
  border-bottom: 2px solid var(--gold);
}

/* Cases grid (Conf 2 — 5 cases) */
.cases-grid {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.cases-grid li {
  background: var(--ink);
  border: 1px solid rgba(214,184,138,0.15);
  padding: 1.6rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cases-grid__tag {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-soft);
  font-weight: 500;
  margin: 0;
}

.cases-grid h3 {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.2rem;
  margin: 0;
  color: var(--paper);
}

.cases-grid p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--mist);
}

.cases-grid strong { color: var(--paper); font-weight: 600; }

/* Formats list */
.formats-detail-list {
  list-style: none;
  margin: 2.5rem 0 1rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
}

.formats-detail-list li {
  padding: 1.4rem 0 0;
  border-top: 1px solid rgba(20,20,20,0.15);
}

.formats-detail-list--dark li { border-top-color: rgba(255,255,255,0.1); }

.formats-detail-list h3 { margin: 0 0 0.4em; font-style: italic; }
.formats-detail-list p { font-size: 0.95rem; color: var(--slate); margin: 0; }

.section--dark .formats-detail-list h3 { color: var(--paper); }
.section--dark .formats-detail-list p { color: var(--mist); }

.formats-detail__note {
  font-style: italic;
  color: var(--gray);
  margin-top: 2rem;
  font-size: 0.9rem;
}

.section--dark .formats-detail__note { color: var(--mist); }

/* Reservation CTA section */
.detail-reserva {
  text-align: center;
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.detail-reserva__title {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--paper);
  max-width: 22ch;
  margin: 0 auto 1rem;
}

.detail-reserva--light .detail-reserva__title { color: var(--black); }

.detail-reserva__lede {
  font-family: var(--serif);
  font-style: italic;
  color: var(--mist);
  margin: 0 auto 2rem;
  font-size: 1.15rem;
}

.detail-reserva--light .detail-reserva__lede { color: var(--slate); }

.btn--large {
  padding: 1.1rem 2rem;
  font-size: 0.92rem;
}

.detail-reserva .btn--primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.detail-reserva .btn--primary:hover {
  background: var(--gold-soft);
  border-color: var(--gold-soft);
  color: var(--ink);
}

/* Cross-sell grid */
.cross-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}

.cross-card {
  background: var(--paper);
  padding: 1.6rem 1.5rem;
  border: 1px solid rgba(20,20,20,0.08);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.cross-card--dark {
  background: #1c1c1c;
  border-color: rgba(255,255,255,0.08);
}

.cross-card:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
}

.cross-card__num {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0;
}

.cross-card h3 {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.15rem;
  margin: 0;
  line-height: 1.2;
}

.cross-card--dark h3 { color: var(--paper); }

.cross-card p {
  font-size: 0.9rem;
  color: var(--slate);
  margin: 0;
  flex: 1;
}

.cross-card--dark p { color: var(--mist); }

.cross-card__cta {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  padding-top: 0.6rem;
  border-top: 1px solid rgba(20,20,20,0.08);
  margin-top: 0.4rem;
}

.cross-card--dark .cross-card__cta { border-top-color: rgba(255,255,255,0.08); }

/* Hub card secondary CTA */
.conf-card__cta-secondary {
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
  padding: 4px 10px;
  border: 1px solid rgba(20,20,20,0.2);
  transition: all .2s var(--ease);
}

.conf-card--capstone .conf-card__cta-secondary,
.conf-card--curated .conf-card__cta-secondary {
  color: var(--mist);
  border-color: rgba(214,184,138,0.3);
}

.conf-card__cta-secondary:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* =====================  METRICS GRID (rendimiento / ficha)  ===================== */

.metrics-grid {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: rgba(214, 184, 138, 0.2);
  border: 1px solid rgba(214, 184, 138, 0.2);
}

.metrics-grid li {
  background: var(--paper);
  padding: 2rem 1.5rem 1.6rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.section--dark .metrics-grid li {
  background: var(--ink);
}

.metrics-grid__num {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 600;
  color: var(--gold);
  line-height: 1;
}

.metrics-grid__label {
  font-size: 0.9rem;
  color: var(--slate);
  margin: 0;
  line-height: 1.4;
}

.section--dark .metrics-grid__label {
  color: var(--mist);
}

.metrics-grid__label span {
  display: block;
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 0.2rem;
  font-style: italic;
}

.section--dark .metrics-grid__label span {
  color: var(--gold-soft);
}

.rendimiento-quote {
  margin: 3rem auto 0;
  max-width: 55ch;
  padding: 1.8rem 2rem;
  background: rgba(176, 141, 87, 0.08);
  border-left: 3px solid var(--gold);
}

.rendimiento-quote p {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.15rem, 1.6vw, 1.4rem);
  line-height: 1.4;
  color: var(--ink);
  margin: 0;
}

/* =====================  PENSAMIENTO — INDEX & ARTICLE  ===================== */

.container--narrow {
  max-width: 780px;
}

/* Index cards */
.thought-index {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.thought-index__card {
  display: block;
  padding: 2.2rem 2.4rem;
  background: var(--paper);
  border: 1px solid rgba(20,20,20,0.08);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.thought-index__card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
  box-shadow: 0 22px 40px -22px rgba(20,20,20,0.2);
}

.thought-index__meta {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0 0 0.8rem;
}

.thought-index__title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  line-height: 1.15;
  color: var(--black);
  margin: 0 0 0.9rem;
  max-width: 32ch;
}

.thought-index__excerpt {
  color: var(--slate);
  font-size: 0.98rem;
  margin: 0 0 1rem;
  line-height: 1.6;
  max-width: 68ch;
}

.thought-index__cta {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
  font-weight: 500;
}

.thought-index__card:hover .thought-index__cta {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* Article hero */
.article__hero {
  padding: 140px 0 60px;
  background: var(--paper);
  border-bottom: 1px solid rgba(20,20,20,0.08);
  position: relative;
  overflow: hidden;
}

.article__hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 90% 10%, rgba(176,141,87,0.08), transparent 65%);
  pointer-events: none;
}

.article__hero .container { position: relative; }

.article__breadcrumb {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 1.5rem;
  font-weight: 500;
}

.article__breadcrumb a {
  color: var(--gold);
  border-bottom: 1px solid rgba(176,141,87,0.4);
  padding-bottom: 1px;
}

.article__breadcrumb a:hover { color: var(--ink); }

.article__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 0.8rem;
  color: var(--black);
}

.article__subtitle {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.2rem, 1.8vw, 1.55rem);
  line-height: 1.35;
  color: var(--slate);
  margin: 0 0 1.6rem;
  max-width: 45ch;
}

.article__byline {
  font-size: 0.9rem;
  color: var(--gray);
  margin: 0;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(20,20,20,0.1);
  letter-spacing: 0.02em;
}

.article__byline strong {
  color: var(--ink);
  font-weight: 600;
}

.article__reading-time {
  color: var(--gold);
  font-weight: 500;
}

/* Article body */
.article__body {
  padding: 4rem 0 5rem;
  background: var(--paper);
}

.article__lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.2rem, 1.6vw, 1.4rem);
  line-height: 1.5;
  color: var(--slate);
  margin: 0 0 2rem;
  padding-left: 1.3rem;
  border-left: 3px solid var(--gold);
}

.article__body h2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(1.6rem, 2.8vw, 2.1rem);
  color: var(--black);
  margin: 3rem 0 1rem;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.article__body p {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--slate);
  margin: 0 0 1.4em;
}

.article__body p strong {
  color: var(--ink);
  font-weight: 600;
}

.article__body ul {
  padding-left: 1.3rem;
  margin: 0 0 1.6em;
}

.article__body ul li {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--slate);
  margin-bottom: 0.5em;
  padding-left: 0.3rem;
}

.article__body ul li strong { color: var(--ink); font-weight: 600; }

.article__body a {
  color: var(--gold);
  border-bottom: 1px solid rgba(176,141,87,0.4);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.article__body a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* Pull quote */
.pull-quote {
  margin: 2.5rem 0;
  padding: 1.8rem 2rem;
  background: rgba(176, 141, 87, 0.08);
  border-left: 3px solid var(--gold);
}

.pull-quote p {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.25rem, 1.9vw, 1.55rem);
  line-height: 1.4;
  color: var(--ink);
  margin: 0 0 0.4rem;
}

.pull-quote p:last-child { margin-bottom: 0; }

/* Disclaimer aside */
.article__disclaimer {
  margin: 0 0 2.5rem;
  padding: 1.4rem 1.6rem;
  background: rgba(20,20,20,0.05);
  border: 1px solid rgba(20,20,20,0.08);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--slate);
}

.article__disclaimer p { margin: 0; }
.article__disclaimer strong { color: var(--ink); }

/* Article footer / CTA */
.article__footer {
  padding: 3rem 0 4rem;
  background: var(--bone);
  border-top: 1px solid rgba(20,20,20,0.08);
}

.article__prompt {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.1rem, 1.4vw, 1.3rem);
  line-height: 1.5;
  color: var(--slate);
  margin: 0 0 1.6rem;
}

.article__prompt strong {
  font-style: normal;
  color: var(--ink);
}

.article__prompt a {
  color: var(--gold);
  border-bottom: 1px solid rgba(176,141,87,0.4);
  padding-bottom: 1px;
}

.article__prompt a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.article__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}


/* Home article-cards as linked blocks */
a.article-card--linked {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

a.article-card--linked:hover {
  transform: translateY(-3px);
  border-color: var(--gold);
}

a.article-card--linked .article-card__link {
  opacity: 1;
  cursor: pointer;
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

a.article-card--linked:hover .article-card__link {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* =====================  BOOK LANDING PAGES  ===================== */

.book-hero {
  padding: 140px 0 60px;
  background: var(--paper);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(20,20,20,0.08);
}

.book-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 90% 10%, rgba(176,141,87,0.1), transparent 60%);
  pointer-events: none;
}

.book-hero .container { position: relative; }

.book-hero__breadcrumb {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0 0 2rem;
}

.book-hero__breadcrumb a {
  color: var(--gold);
  border-bottom: 1px solid rgba(176,141,87,0.4);
  padding-bottom: 1px;
}

.book-hero__breadcrumb a:hover { color: var(--ink); }

.book-hero__badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--gold);
  color: var(--ink);
  margin-left: 6px;
  font-weight: 600;
}

.book-hero__grid {
  display: grid;
  grid-template-columns: minmax(240px, 340px) 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.book-hero__cover {
  margin: 0;
}

.book-hero__cover img {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  box-shadow:
    0 1px 0 rgba(20,20,20,0.04),
    0 30px 60px -18px rgba(20,20,20,0.4);
  transition: transform .4s var(--ease);
}

.book-hero__cover img:hover {
  transform: scale(1.02);
}

.book-hero__title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--black);
  margin: 0 0 0.4em;
}

.book-hero__series {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin: 0 0 1.4rem;
}

.book-hero__series em {
  font-style: italic;
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--gold-soft);
}

.book-hero__pitch {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.2rem, 1.8vw, 1.55rem);
  line-height: 1.4;
  color: var(--slate);
  margin: 0 0 1.6rem;
  padding-left: 1.2rem;
  border-left: 3px solid var(--gold);
  max-width: 40ch;
}

.book-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}

.book-hero__cta .btn {
  padding: 0.65rem 1rem;
  font-size: 0.72rem;
}

.book-hero__meta {
  font-size: 0.82rem;
  color: var(--gray);
  padding-top: 1rem;
  border-top: 1px solid rgba(20,20,20,0.1);
  margin: 0;
  letter-spacing: 0.02em;
}

@media (max-width: 780px) {
  .book-hero__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .book-hero__cover {
    max-width: 260px;
    margin: 0 auto;
  }
}

/* Book body */
.book-body {
  background: var(--paper);
  padding: 4rem 0 5rem;
}

.book-body__lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.15rem, 1.5vw, 1.4rem);
  line-height: 1.5;
  color: var(--slate);
  margin: 0 0 1.8rem;
  padding-left: 1.3rem;
  border-left: 3px solid var(--gold);
}

.book-body p {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--slate);
  margin: 0 0 1.4em;
}

.book-body p strong {
  color: var(--ink);
  font-weight: 600;
}

.book-body__closer {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--ink);
  text-align: center;
  margin: 2.5rem 0 0;
  padding-top: 2rem;
  border-top: 1px solid rgba(20,20,20,0.1);
}

/* Book saga cross-sell */
.book-saga { padding: clamp(4rem, 7vw, 6rem) 0; }

/* Book cards as links (in /libros/ index) */
a.book-card--link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

a.book-card--link .book-card__cta {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(20,20,20,0.08);
}

a.book-card--link:hover .book-card__cta {
  color: var(--ink);
}

.section--dark a.book-card--link .book-card__cta {
  border-top-color: rgba(255,255,255,0.08);
  color: var(--gold-soft);
}

.section--dark a.book-card--link:hover .book-card__cta {
  color: var(--paper);
}