/* =============================================================
   Instituto Cholqui — Stylesheet
   Stack: HTML5 + CSS3 (Custom Properties, Grid, Flexbox) + Vanilla JS
   Mobile-first · Target LCP <1.5s · CLS <0.05 · Lighthouse 95+
   ============================================================= */

/* ============ 0. Reset minimalista ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img, picture, video { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.2; font-weight: 400; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding-left: 1.25em; }
:focus-visible { outline: 2px solid var(--c-borgona); outline-offset: 3px; }

/* ============ 1. Design tokens ============ */
:root {
  /* Paleta */
  --c-blanco: #FFFFFF;
  --c-hueso: #FAF8F4;
  --c-gris-50: #F4F2EE;
  --c-gris-100: #E8E5DF;
  --c-gris-300: #C9C4BB;
  --c-gris-500: #8A867E;
  --c-gris-700: #4A4842;
  --c-gris-900: #1F1E1B;
  --c-borgona: #9C3A3A;
  --c-borgona-dark: #7A2B2B;
  --c-borgona-light: #B85555;
  --c-dorado: #D4AF37;
  --c-dorado-dark: #A8881D;

  /* Tipografía */
  --f-sans: 'Lato', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --f-serif: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;

  /* Escala fluida (clamp min, vw, max) */
  --t-xs:   clamp(0.78rem, 0.75rem + 0.15vw, 0.85rem);
  --t-sm:   clamp(0.88rem, 0.85rem + 0.2vw, 0.95rem);
  --t-base: 1rem;
  --t-lg:   clamp(1.05rem, 1rem + 0.3vw, 1.15rem);
  --t-xl:   clamp(1.25rem, 1.1rem + 0.7vw, 1.5rem);
  --t-2xl:  clamp(1.6rem, 1.35rem + 1.2vw, 2.2rem);
  --t-3xl:  clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
  --t-hero: clamp(2.4rem, 1.6rem + 4vw, 5rem);

  /* Espaciado (escala 4-base) */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;

  /* Layout */
  --container: 1200px;
  --container-narrow: 760px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* Sombras */
  --shadow-sm: 0 1px 3px rgba(31, 30, 27, 0.08);
  --shadow-md: 0 8px 24px rgba(31, 30, 27, 0.10);
  --shadow-lg: 0 16px 48px rgba(31, 30, 27, 0.14);

  /* Transiciones */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast: 180ms;
  --t-base-d: 280ms;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ============ 2. Tipografía base ============ */
body {
  font-family: var(--f-sans);
  font-size: var(--t-base);
  color: var(--c-gris-900);
  background: var(--c-hueso);
  font-weight: 400;
}

h1, h2, h3, .display { font-family: var(--f-serif); font-weight: 500; letter-spacing: -0.01em; }
h1 { font-size: var(--t-3xl); }
h2 { font-size: var(--t-2xl); }
h3 { font-size: var(--t-xl); }

.eyebrow {
  font-family: var(--f-sans);
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-borgona);
  margin-bottom: var(--s-3);
  display: inline-block;
}

.lead { font-size: var(--t-lg); color: var(--c-gris-700); max-width: 60ch; }

/* ============ 3. Utilidades de layout ============ */
.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.container-narrow { width: min(100% - 2rem, var(--container-narrow)); margin-inline: auto; }
.section { padding-block: var(--s-8); }
@media (min-width: 768px) { .section { padding-block: var(--s-10); } }

.flow > * + * { margin-top: var(--s-4); }
.flow-lg > * + * { margin-top: var(--s-6); }
.text-center { text-align: center; }
.muted { color: var(--c-gris-500); }

/* ============ 4. Header / Navegación ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--c-gris-100);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--s-3);
}
.brand { display: inline-flex; align-items: center; gap: var(--s-3); }
.brand__logo { height: 44px; width: auto; }
.brand__name { font-family: var(--f-serif); font-size: var(--t-lg); color: var(--c-gris-900); letter-spacing: 0.02em; }
.brand__name strong { color: var(--c-dorado-dark); font-weight: 600; }

.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 5px;
  width: 40px; height: 40px; align-items: center; justify-content: center;
  background: none; border: 0; cursor: pointer; padding: 0;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-gris-900); transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--c-blanco); border-bottom: 1px solid var(--c-gris-100); transform: translateY(-10px); opacity: 0; visibility: hidden; transition: all var(--t-base-d) var(--ease); }
.site-nav[data-open="true"] { transform: translateY(0); opacity: 1; visibility: visible; }
.site-nav ul { list-style: none; padding: var(--s-4) 0; margin: 0; display: flex; flex-direction: column; }
.site-nav a { display: block; padding: var(--s-3) var(--s-4); font-size: var(--t-sm); border-bottom: 1px solid var(--c-gris-50); transition: color var(--t-fast); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--c-borgona); }

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
  .site-nav { position: static; transform: none; opacity: 1; visibility: visible; background: transparent; border: 0; }
  .site-nav ul { flex-direction: row; padding: 0; gap: var(--s-2); }
  .site-nav a { padding: var(--s-2) var(--s-3); border: 0; font-size: var(--t-sm); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
  .site-nav a[aria-current="page"] { border-bottom: 2px solid var(--c-borgona); }
}

/* ============ 5. Hero ============ */
.hero {
  position: relative;
  min-height: 70vh;
  display: grid; place-items: center;
  padding-block: var(--s-9);
  color: var(--c-blanco);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: ''; position: absolute; inset: 0; z-index: -2;
  background: linear-gradient(135deg, #2a2823 0%, #3d3a32 100%);
}
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  object-fit: cover; width: 100%; height: 100%;
}
.hero::after {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(31,30,27,0.35) 0%, rgba(31,30,27,0.65) 100%);
}
.hero__inner { text-align: center; max-width: 800px; }
.hero__title {
  font-family: var(--f-serif);
  font-size: var(--t-hero);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.05;
  text-shadow: 0 2px 24px rgba(0,0,0,0.4);
}
.hero__subtitle { font-size: var(--t-lg); margin-top: var(--s-5); opacity: 0.92; }
.hero__cta { margin-top: var(--s-6); display: inline-flex; gap: var(--s-4); flex-wrap: wrap; justify-content: center; }

/* Hero secundario más bajo */
.hero--secondary { min-height: 45vh; padding-block: var(--s-8); }

/* ============ 6. Botones ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  padding: 0.85rem 1.75rem;
  font-family: var(--f-sans); font-size: var(--t-sm); font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--t-fast) var(--ease);
  text-decoration: none;
  min-height: 48px; /* touch target */
}
.btn--primary { background: var(--c-borgona); color: var(--c-blanco); border-color: var(--c-borgona); }
.btn--primary:hover, .btn--primary:focus-visible { background: var(--c-borgona-dark); border-color: var(--c-borgona-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: var(--c-blanco); border-color: rgba(255,255,255,0.6); }
.btn--ghost:hover { background: rgba(255,255,255,0.1); border-color: var(--c-blanco); }
.btn--dark { background: var(--c-gris-900); color: var(--c-blanco); border-color: var(--c-gris-900); }
.btn--dark:hover { background: var(--c-borgona); border-color: var(--c-borgona); }

/* ============ 7. Features ============ */
.features {
  display: grid; gap: var(--s-6);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) { .features { grid-template-columns: repeat(3, 1fr); gap: var(--s-7); } }
.feature { text-align: center; }
.feature__icon {
  width: 56px; height: 56px; margin: 0 auto var(--s-4);
  display: grid; place-items: center;
  color: var(--c-borgona);
}
.feature__title { font-family: var(--f-serif); font-size: var(--t-xl); margin-bottom: var(--s-3); }
.feature__body { color: var(--c-gris-700); font-size: var(--t-base); }

/* ============ 8. Banda destacada ============ */
.band {
  background: var(--c-borgona);
  color: var(--c-blanco);
  padding-block: var(--s-8);
  text-align: center;
}
.band__title {
  font-family: var(--f-serif);
  font-size: var(--t-3xl);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.01em;
}
.band--gold { background: var(--c-dorado); color: var(--c-gris-900); }
.band--dark { background: var(--c-gris-900); }

/* ============ 9. Grid de Amigos ============ */
.amigos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--s-5);
}
.amigo-card {
  background: var(--c-blanco);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-base-d) var(--ease), box-shadow var(--t-base-d) var(--ease);
  display: flex; flex-direction: column;
}
.amigo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.amigo-card__media { aspect-ratio: 4/5; background: var(--c-gris-100); overflow: hidden; }
.amigo-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms var(--ease); }
.amigo-card:hover .amigo-card__media img { transform: scale(1.04); }
.amigo-card__body { padding: var(--s-4) var(--s-5) var(--s-5); flex: 1; display: flex; flex-direction: column; }
.amigo-card__name { font-family: var(--f-serif); font-size: var(--t-lg); color: var(--c-gris-900); margin-bottom: var(--s-1); }
.amigo-card__role { font-size: var(--t-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--c-borgona); font-weight: 700; margin-bottom: var(--s-3); }
.amigo-card__bio { font-size: var(--t-sm); color: var(--c-gris-700); line-height: 1.55; }

/* ============ 10. Timeline (Actividades / Testimonios) ============ */
.timeline { position: relative; padding-left: var(--s-5); }
.timeline::before {
  content: ''; position: absolute; left: 8px; top: 0; bottom: 0;
  width: 2px; background: var(--c-gris-100);
}
.timeline__item { position: relative; padding-bottom: var(--s-7); }
.timeline__item::before {
  content: ''; position: absolute; left: -22px; top: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--c-borgona); border: 3px solid var(--c-hueso);
}
.timeline__year {
  display: inline-block; font-size: var(--t-xs); font-weight: 700;
  letter-spacing: 0.15em; text-transform: uppercase; color: var(--c-borgona);
  margin-bottom: var(--s-2);
}
.timeline__title { font-family: var(--f-serif); font-size: var(--t-xl); margin-bottom: var(--s-2); }
.timeline__author { font-size: var(--t-sm); color: var(--c-gris-500); margin-top: var(--s-3); font-style: italic; }

@media (min-width: 1024px) {
  .timeline { padding-left: 0; max-width: 800px; margin-inline: auto; }
  .timeline::before { left: 50%; transform: translateX(-50%); }
  .timeline__item { width: 50%; padding-bottom: var(--s-8); }
  .timeline__item:nth-child(odd) { padding-right: var(--s-6); text-align: right; }
  .timeline__item:nth-child(odd)::before { left: auto; right: -28px; }
  .timeline__item:nth-child(even) { margin-left: 50%; padding-left: var(--s-6); }
  .timeline__item:nth-child(even)::before { left: -28px; }
}

/* ============ 11. Cards de talleres ============ */
.taller-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
}
@media (min-width: 768px) { .taller-grid { grid-template-columns: 1fr 1fr; } }
.taller-card {
  background: var(--c-blanco);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
  transition: transform var(--t-base-d) var(--ease), box-shadow var(--t-base-d) var(--ease);
}
.taller-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.taller-card__media { aspect-ratio: 16/10; background: var(--c-gris-100); }
.taller-card__media img { width: 100%; height: 100%; object-fit: cover; }
.taller-card__body { padding: var(--s-6); flex: 1; display: flex; flex-direction: column; }
.taller-card__title { font-family: var(--f-serif); font-size: var(--t-2xl); margin-bottom: var(--s-3); }
.taller-card__price { font-size: var(--t-lg); color: var(--c-borgona); font-weight: 700; margin-block: var(--s-3); }
.taller-card__price small { font-size: var(--t-xs); color: var(--c-gris-500); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 400; display: block; margin-top: 2px; }
.taller-card__cta { margin-top: auto; padding-top: var(--s-4); }

/* ============ 12. Detalle de workshop / experiencia ============ */
.detail-grid {
  display: grid; gap: var(--s-7);
  grid-template-columns: 1fr;
}
@media (min-width: 1024px) { .detail-grid { grid-template-columns: 1.4fr 1fr; align-items: start; } }
.detail-aside {
  background: var(--c-blanco);
  border-radius: var(--radius-lg);
  padding: var(--s-6);
  box-shadow: var(--shadow-sm);
  position: sticky; top: 100px;
}
.detail-aside__price { font-family: var(--f-serif); font-size: var(--t-3xl); color: var(--c-borgona); margin-bottom: var(--s-2); }
.detail-aside__price small { display: block; font-family: var(--f-sans); font-size: var(--t-xs); letter-spacing: 0.15em; text-transform: uppercase; color: var(--c-gris-500); font-weight: 700; margin-bottom: var(--s-2); }
.detail-aside ul { list-style: none; padding: 0; margin: var(--s-4) 0; }
.detail-aside li { padding-left: 1.75em; position: relative; margin-bottom: var(--s-2); font-size: var(--t-sm); color: var(--c-gris-700); }
.detail-aside li::before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--c-dorado-dark); font-weight: 700; }

/* ============ 13. Formulario de contacto ============ */
.form-grid { display: grid; gap: var(--s-7); grid-template-columns: 1fr; }
@media (min-width: 1024px) { .form-grid { grid-template-columns: 1.2fr 1fr; } }

.contact-form { display: flex; flex-direction: column; gap: var(--s-4); }
.field { display: flex; flex-direction: column; gap: var(--s-2); }
.field label { font-size: var(--t-sm); font-weight: 600; color: var(--c-gris-700); }
.field input, .field textarea, .field select {
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--c-gris-100);
  border-radius: var(--radius-md);
  background: var(--c-blanco);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  font-family: var(--f-sans); font-size: var(--t-base);
  min-height: 48px;
}
.field textarea { min-height: 160px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 0; border-color: var(--c-borgona);
  box-shadow: 0 0 0 4px rgba(156, 58, 58, 0.12);
}
.field--honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.contact-info { font-size: var(--t-sm); }
.contact-info__row { display: flex; gap: var(--s-4); align-items: flex-start; padding: var(--s-4) 0; border-bottom: 1px solid var(--c-gris-100); }
.contact-info__row svg { flex-shrink: 0; width: 22px; height: 22px; color: var(--c-borgona); margin-top: 2px; }
.contact-info__row strong { display: block; font-family: var(--f-serif); font-size: var(--t-lg); color: var(--c-gris-900); margin-bottom: var(--s-1); font-weight: 500; }

.map-wrapper { aspect-ratio: 16/10; border-radius: var(--radius-md); overflow: hidden; margin-top: var(--s-4); box-shadow: var(--shadow-sm); }
.map-wrapper iframe { width: 100%; height: 100%; border: 0; }

/* Alerts del form */
.alert { padding: var(--s-4) var(--s-5); border-radius: var(--radius-md); margin-bottom: var(--s-5); font-size: var(--t-sm); }
.alert--success { background: #E8F4E1; color: #2E5C1F; border-left: 4px solid #4A7C2A; }
.alert--error { background: #FCE8E8; color: #7A2B2B; border-left: 4px solid var(--c-borgona); }

/* ============ 14. Footer ============ */
.site-footer {
  background: var(--c-gris-900);
  color: var(--c-gris-300);
  padding-block: var(--s-8) var(--s-5);
  font-size: var(--t-sm);
}
.footer-grid { display: grid; gap: var(--s-6); grid-template-columns: 1fr; margin-bottom: var(--s-6); }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer h4 { font-family: var(--f-sans); font-size: var(--t-xs); font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-blanco); margin-bottom: var(--s-3); }
.site-footer a { color: var(--c-gris-300); transition: color var(--t-fast); }
.site-footer a:hover { color: var(--c-dorado); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { padding: var(--s-1) 0; }

.social-links { display: flex; gap: var(--s-3); margin-top: var(--s-3); }
.social-links a {
  width: 40px; height: 40px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06); transition: background var(--t-fast), transform var(--t-fast);
}
.social-links a:hover { background: var(--c-borgona); transform: translateY(-2px); }
.social-links svg { width: 18px; height: 18px; color: var(--c-blanco); }

.copyright { border-top: 1px solid rgba(255,255,255,0.08); padding-top: var(--s-5); text-align: center; font-size: var(--t-xs); color: var(--c-gris-500); }

/* ============ 14.5 Amigo cards con hover overlay ============ */
.amigos-grid {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
}
@media (min-width: 600px) { .amigos-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .amigos-grid { grid-template-columns: repeat(4, 1fr); } }

.amigo-card {
  display: block;
  background: transparent;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t-base-d) var(--ease), box-shadow var(--t-base-d) var(--ease);
  text-decoration: none;
  position: relative;
}
.amigo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.amigo-card__media { aspect-ratio: 1/1; background: var(--c-gris-100); overflow: hidden; position: relative; }
.amigo-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms var(--ease); }
.amigo-card:hover .amigo-card__media img { transform: scale(1.04); }

.amigo-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(31,30,27,0) 40%, rgba(31,30,27,0.92) 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: var(--s-4);
  color: var(--c-blanco);
  opacity: 1;
  transition: opacity var(--t-base-d) var(--ease);
}
@media (min-width: 768px) {
  .amigo-card__overlay { opacity: 0; background: linear-gradient(180deg, rgba(31,30,27,0) 0%, rgba(31,30,27,0.92) 100%); }
  .amigo-card:hover .amigo-card__overlay,
  .amigo-card:focus-visible .amigo-card__overlay { opacity: 1; }
}
.amigo-card__overlay-name {
  display: block;
  font-family: var(--f-serif);
  font-size: var(--t-lg);
  line-height: 1.2;
  margin-bottom: var(--s-1);
}
.amigo-card__overlay-role {
  display: block;
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-dorado);
  opacity: 0.9;
}

/* ============ 14.6 Amigo detalle (interior) ============ */
.amigo-detail { padding-block: var(--s-7) var(--s-8); }
.amigo-detail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
}
@media (min-width: 900px) {
  .amigo-detail__grid { grid-template-columns: 1fr 1.4fr; gap: var(--s-8); align-items: start; }
}
.amigo-detail__media {
  aspect-ratio: 1/1;
  background: var(--c-gris-100);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.amigo-detail__media img { width: 100%; height: 100%; object-fit: cover; }
.amigo-detail__name {
  font-family: var(--f-serif);
  font-size: var(--t-3xl);
  font-weight: 500;
  margin-bottom: var(--s-2);
}
.amigo-detail__role {
  font-size: var(--t-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-borgona);
  font-weight: 700;
  margin-bottom: var(--s-5);
}
.amigo-detail__intro {
  font-family: var(--f-serif);
  font-size: var(--t-xl);
  color: var(--c-gris-700);
  font-style: italic;
  line-height: 1.4;
  margin-bottom: var(--s-5);
}
.amigo-detail__bio p {
  font-size: var(--t-base);
  color: var(--c-gris-700);
  line-height: 1.65;
  margin-bottom: var(--s-4);
}
.amigo-detail__contacto {
  margin-top: var(--s-5);
  padding: var(--s-4);
  background: var(--c-gris-50);
  border-left: 3px solid var(--c-dorado);
  font-size: var(--t-sm);
}
.amigo-detail__links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
  margin-top: var(--s-5);
}
.amigo-detail__link {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.2rem;
  background: var(--c-gris-50);
  border-radius: 999px;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--c-gris-700);
  transition: all var(--t-fast) var(--ease);
  text-decoration: none;
}
.amigo-detail__link:hover { background: var(--c-borgona); color: var(--c-blanco); }

/* Navegación entre amigos */
.amigo-detail__nav {
  margin-top: var(--s-9);
  padding-top: var(--s-6);
  border-top: 1px solid var(--c-gris-100);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--s-4);
  align-items: center;
}
@media (max-width: 700px) { .amigo-detail__nav { grid-template-columns: 1fr; } }
.amigo-detail__nav a { text-decoration: none; color: var(--c-gris-700); transition: color var(--t-fast); }
.amigo-detail__nav a:hover { color: var(--c-borgona); }
.amigo-detail__nav-prev { text-align: left; }
.amigo-detail__nav-next { text-align: right; }
.amigo-detail__nav-all {
  text-align: center;
  padding: 0.6rem 1.2rem;
  background: var(--c-gris-900);
  color: var(--c-blanco) !important;
  border-radius: var(--radius-md);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}
.amigo-detail__nav-all:hover { background: var(--c-borgona); color: var(--c-blanco) !important; }
.amigo-detail__nav-label { display: block; font-size: var(--t-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--c-gris-500); margin-bottom: 4px; }
.amigo-detail__nav-name { display: block; font-family: var(--f-serif); font-size: var(--t-lg); }

/* ============ 14.7 Filtro chips (actividades por año) ============ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-7);
  justify-content: center;
}
.filter-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.1rem;
  background: var(--c-gris-50);
  border-radius: 999px;
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--c-gris-700);
  text-decoration: none;
  transition: all var(--t-fast) var(--ease);
}
.filter-chip:hover { background: var(--c-gris-100); }
.filter-chip--active { background: var(--c-borgona); color: var(--c-blanco); }
.filter-chip--active:hover { background: var(--c-borgona-dark); }

/* ============ 14.8 Actividades grid + cards ============ */
.act-grid {
  display: grid;
  gap: var(--s-5);
  grid-template-columns: 1fr;
}
@media (min-width: 600px) { .act-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .act-grid { grid-template-columns: repeat(3, 1fr); gap: var(--s-6); } }

.act-card {
  display: flex; flex-direction: column;
  background: var(--c-blanco);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: transform var(--t-base-d) var(--ease), box-shadow var(--t-base-d) var(--ease);
}
.act-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.act-card__media { aspect-ratio: 4/3; background: var(--c-gris-100); overflow: hidden; position: relative; }
.act-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms var(--ease); }
.act-card:hover .act-card__media img { transform: scale(1.05); }
.act-card__tag {
  position: absolute; top: var(--s-3); left: var(--s-3);
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--c-borgona);
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-sm);
}
.act-card__body { padding: var(--s-5); flex: 1; display: flex; flex-direction: column; }
.act-card__date {
  font-size: var(--t-xs);
  color: var(--c-gris-500);
  margin-bottom: var(--s-3);
  letter-spacing: 0.05em;
}
.act-card__title {
  font-family: var(--f-serif);
  font-size: var(--t-xl);
  font-weight: 500;
  line-height: 1.25;
  margin-bottom: var(--s-3);
  color: var(--c-gris-900);
}
.act-card__excerpt {
  font-size: var(--t-sm);
  color: var(--c-gris-700);
  line-height: 1.55;
  margin: 0;
}

/* ============ 14.9 Actividad detalle (show) + galería ============ */
.act-detail__content p {
  font-size: var(--t-lg);
  line-height: 1.7;
  color: var(--c-gris-700);
  margin-bottom: var(--s-4);
}
/* Dropcap solo en el primer párrafo, no en los siguientes */
.act-detail__content p:first-of-type::first-letter {
  font-family: var(--f-serif);
  font-size: 3.2em;
  float: left;
  line-height: 0.9;
  margin: 4px 12px 0 0;
  color: var(--c-borgona);
}

.gallery {
  display: grid;
  gap: var(--s-3);
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 600px) { .gallery { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .gallery { grid-template-columns: repeat(4, 1fr); } }
.gallery__item {
  display: block;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--c-gris-100);
  position: relative;
  cursor: zoom-in;
}
.gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms var(--ease); }
.gallery__item:hover img { transform: scale(1.06); }

/* Navegación entre actividades */
.act-detail__nav {
  margin-top: var(--s-8);
  padding-block: var(--s-7);
  background: var(--c-gris-50);
}
.act-detail__nav-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--s-5);
  align-items: center;
}
@media (max-width: 700px) { .act-detail__nav-grid { grid-template-columns: 1fr; text-align: center; } }
.act-detail__nav a { text-decoration: none; color: var(--c-gris-700); transition: color var(--t-fast); }
.act-detail__nav a:hover { color: var(--c-borgona); }
.act-detail__nav-prev { text-align: left; }
.act-detail__nav-next { text-align: right; }
@media (max-width: 700px) {
  .act-detail__nav-prev, .act-detail__nav-next { text-align: center; }
}
.act-detail__nav-label { display: block; font-size: var(--t-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--c-gris-500); margin-bottom: 4px; }
.act-detail__nav-title { display: block; font-family: var(--f-serif); font-size: var(--t-base); line-height: 1.3; }
.act-detail__nav-all {
  text-align: center;
  padding: 0.7rem 1.4rem;
  background: var(--c-gris-900);
  color: var(--c-blanco) !important;
  border-radius: var(--radius-md);
  font-size: var(--t-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}
.act-detail__nav-all:hover { background: var(--c-borgona); color: var(--c-blanco) !important; }

/* ============ 15. Misc / Skip-to-content (a11y) ============ */
.skip-link {
  position: absolute; left: -9999px; top: var(--s-2);
  background: var(--c-borgona); color: var(--c-blanco); padding: var(--s-2) var(--s-4);
  border-radius: var(--radius-sm); z-index: 100; font-weight: 700;
}
.skip-link:focus { left: var(--s-4); }

/* Print */
@media print {
  .site-header, .site-footer, .nav-toggle, .btn { display: none !important; }
  body { background: white; color: black; }
}