/* ============================================
   alfredoenrione.com — Stylesheet v1
   Blueprint v3 design tokens
   ============================================ */

/* ---------- DESIGN TOKENS ---------- */
:root {
  /* Colors */
  --color-ink: #1A1A1A;
  --color-body: #333333;
  --color-muted: #666666;
  --color-light: #999999;
  --color-bg: #FAFAF7;
  --color-bg-warm: #F4F0E8;
  --color-bg-dark: #1F1F1F;
  --color-accent: #8B0000;
  --color-accent-light: #B23A48;
  --color-border: #E5E1D8;

  /* Typography */
  --font-serif: 'Source Serif Pro', 'Charter', Georgia, serif;
  --font-sans: 'Inter', 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', Menlo, monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-w-content: 720px;
  --max-w-wide: 1200px;
  --max-w-full: 1440px;
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { margin: 0; padding: 0; }
img, picture, svg { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ---------- BASE ---------- */
body {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--color-body);
  background-color: var(--color-bg);
  font-feature-settings: 'kern', 'liga', 'calt';
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-sans);
  color: var(--color-ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); line-height: 1.1; }
h2 { font-size: clamp(2rem, 3.5vw, 2.5rem); line-height: 1.2; }
h3 { font-size: clamp(1.375rem, 2vw, 1.625rem); line-height: 1.3; }
h4 { font-size: 1.125rem; line-height: 1.4; }

p { margin: 0 0 1.25em 0; }

.eyebrow {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8125rem;
  color: var(--color-muted);
  font-weight: 600;
  margin-bottom: var(--space-s);
  display: block;
}

.eyebrow-accent { color: var(--color-accent); }

/* ---------- LAYOUT ---------- */
.container {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--space-l);
}

.container-narrow {
  max-width: var(--max-w-content);
  margin: 0 auto;
  padding: 0 var(--space-l);
}

section { padding: var(--space-2xl) 0; }
section.section-sm { padding: var(--space-xl) 0; }

/* ---------- HEADER ---------- */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(180%) blur(8px);
  background-color: rgba(250, 250, 247, 0.92);
}

.site-header-inner {
  max-width: var(--max-w-full);
  margin: 0 auto;
  padding: var(--space-s) var(--space-l);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-l);
}

.site-logo {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--color-ink);
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.site-logo::after {
  content: '';
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.site-nav { display: flex; gap: var(--space-l); }
.site-nav a {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-body);
  transition: color 0.15s;
}
.site-nav a:hover { color: var(--color-accent); }

.site-header-right { display: flex; align-items: center; gap: var(--space-m); }

.lang-toggle {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}
.lang-toggle a { padding: 0 0.25rem; }
.lang-toggle .active { color: var(--color-ink); font-weight: 600; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.85rem 1.5rem;
  border: 1px solid transparent;
  border-radius: 3px;
  transition: all 0.15s;
  cursor: pointer;
  text-align: center;
  line-height: 1.2;
}
.btn-primary {
  background-color: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background-color: #6B0000;
  border-color: #6B0000;
}
.btn-secondary {
  background-color: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn-secondary:hover {
  background-color: var(--color-ink);
  color: white;
}
.btn-link {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-accent);
  font-weight: 600;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

/* ---------- HERO ---------- */
.hero {
  padding: var(--space-2xl) 0 var(--space-3xl);
  background-color: var(--color-bg);
}
.hero-grid {
  max-width: var(--max-w-full);
  margin: 0 auto;
  padding: 0 var(--space-l);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.hero-content h1 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: var(--space-m);
  color: var(--color-ink);
}
.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--color-muted);
  margin-bottom: var(--space-l);
  max-width: 540px;
}
.hero-form {
  display: flex;
  gap: 0.5rem;
  max-width: 480px;
  margin-bottom: var(--space-s);
}
.hero-form input[type="email"] {
  flex: 1;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  background-color: white;
}
.hero-microcopy {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-light);
}
.hero-photo {
  position: relative;
  aspect-ratio: 4/5;
  overflow: hidden;
  background: linear-gradient(135deg, #2a2a2a 0%, #555 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aaa;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem;
}
.hero-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.2));
  pointer-events: none;
}

/* ---------- CREDENCIALES ---------- */
.credentials {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-m) 0;
  background-color: white;
}
.credentials-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-l);
  align-items: center;
  margin-bottom: var(--space-s);
}
.credentials-logos span {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}
.credentials-tagline {
  font-family: var(--font-sans);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-light);
  letter-spacing: 0.02em;
}

/* ---------- THESIS ---------- */
.thesis {
  background-color: var(--color-bg);
  text-align: left;
}
.thesis-content {
  max-width: 780px;
  margin: 0 auto;
}
.thesis h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-style: italic;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  line-height: 1.25;
  margin-bottom: var(--space-l);
  color: var(--color-ink);
}
.thesis p {
  font-size: 1.1875rem;
  line-height: 1.7;
}

/* ---------- ARTICLE CARDS ---------- */
.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
}
.section-title h2 { margin-bottom: var(--space-s); }
.section-title p {
  color: var(--color-muted);
  margin: 0;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-l);
  margin-bottom: var(--space-xl);
}
.article-card {
  background-color: white;
  padding: var(--space-l);
  border: 1px solid var(--color-border);
  transition: transform 0.2s, border-color 0.2s;
}
.article-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
}
.article-card .eyebrow { margin-bottom: var(--space-s); }
.article-card h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.375rem;
  line-height: 1.3;
  margin-bottom: var(--space-s);
}
.article-card p {
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-muted);
  margin-bottom: var(--space-m);
}
.article-card .btn-link {
  font-size: 0.875rem;
}

.section-cta {
  text-align: center;
  margin-top: var(--space-xl);
}

/* ---------- SERVICIOS ---------- */
.services {
  background-color: var(--color-bg-warm);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-l);
}
.service-card {
  background-color: white;
  padding: var(--space-xl) var(--space-l);
  text-align: center;
  border-top: 4px solid var(--color-accent);
  transition: transform 0.2s;
}
.service-card.alt { border-top-color: var(--color-accent-light); }
.service-card.azul { border-top-color: #1B3A57; }
.service-card:hover { transform: translateY(-4px); }
.service-card h3 {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  margin-bottom: var(--space-m);
}
.service-card p {
  font-size: 1rem;
  line-height: 1.55;
  color: var(--color-muted);
  margin-bottom: var(--space-m);
}

/* ---------- CÍRCULO DE DIRECTORES ---------- */
.circulo {
  background-color: var(--color-bg-warm);
  text-align: center;
}
.circulo h3 {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.625rem;
  margin-bottom: var(--space-m);
}
.circulo p {
  max-width: 640px;
  margin: 0 auto var(--space-l);
  color: var(--color-body);
}
.circulo-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-l);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ---------- LIBROS ---------- */
.books {
  background-color: var(--color-bg);
}
.books-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  max-width: var(--max-w-full);
  margin: 0 auto;
}
.books-photo {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, #d4ad7c 0%, #b8956a 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(0,0,0,0.4);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  text-align: center;
  padding: 2rem;
}
.books-list h3 {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.875rem;
  margin-bottom: var(--space-s);
}
.books-intro {
  color: var(--color-muted);
  margin-bottom: var(--space-l);
}
.books-list ul {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-l) 0;
}
.books-list li {
  padding: var(--space-s) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 1rem;
  line-height: 1.5;
}
.books-list li:last-child { border-bottom: none; }
.book-title {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-ink);
  display: block;
  margin-bottom: 4px;
}
.book-meta {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-light);
}

/* ---------- FORTHCOMING BOOK ---------- */
.forthcoming {
  background-color: var(--color-bg-dark);
  color: #E8E8E8;
}
.forthcoming-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--space-2xl);
  align-items: center;
  max-width: var(--max-w-full);
  margin: 0 auto;
}
.forthcoming-mockup {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, #3a3a3a 0%, #1f1f1f 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem;
}
.forthcoming .eyebrow { color: var(--color-accent-light); }
.forthcoming h2 {
  color: white;
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.625rem);
  margin-bottom: var(--space-xs);
}
.forthcoming .subtitle-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.375rem;
  color: #B8B8B8;
  margin-bottom: var(--space-l);
}
.forthcoming p {
  color: #C0C0C0;
  margin-bottom: var(--space-l);
}
.forthcoming-form h4 {
  color: white;
  margin-bottom: var(--space-xs);
}
.forthcoming-form .microcopy {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: #888;
  margin-bottom: var(--space-s);
}
.forthcoming-form form {
  display: flex;
  gap: 0.5rem;
  max-width: 480px;
}
.forthcoming-form input[type="email"] {
  flex: 1;
  padding: 0.85rem 1.1rem;
  border: 1px solid #444;
  border-radius: 3px;
  background-color: #2a2a2a;
  color: white;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}
.forthcoming-form input::placeholder { color: #777; }

/* ---------- NEWSLETTER ---------- */
.newsletter {
  background-color: var(--color-accent);
  color: white;
  text-align: center;
}
.newsletter h2 {
  color: white;
  font-family: var(--font-serif);
  font-style: italic;
  margin-bottom: var(--space-m);
}
.newsletter p {
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-l);
}
.newsletter form {
  display: flex;
  gap: 0.5rem;
  max-width: 480px;
  margin: 0 auto var(--space-s);
}
.newsletter input[type="email"] {
  flex: 1;
  padding: 0.85rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
}
.newsletter .btn-primary {
  background-color: white;
  color: var(--color-accent);
  border-color: white;
}
.newsletter .btn-primary:hover {
  background-color: var(--color-bg);
}
.newsletter .microcopy {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.7);
}

/* ---------- PRENSA ---------- */
.prensa-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-m);
  margin-bottom: var(--space-l);
}
.prensa-card {
  background-color: white;
  padding: var(--space-m);
  text-align: center;
  border: 1px solid var(--color-border);
}
.prensa-card .medio {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--color-ink);
  margin-bottom: var(--space-xs);
}
.prensa-card .desc {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.4;
}

/* ---------- FOOTER ---------- */
.site-footer {
  background-color: var(--color-bg-dark);
  color: #B0B0B0;
  padding: var(--space-2xl) 0 var(--space-l);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  max-width: var(--max-w-wide);
  margin: 0 auto var(--space-xl);
  padding: 0 var(--space-l);
}
.footer-col h4 {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #888;
  margin-bottom: var(--space-m);
  font-weight: 600;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: var(--space-xs); }
.footer-col a {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: #D0D0D0;
  transition: color 0.15s;
}
.footer-col a:hover { color: white; }
.footer-bio p {
  font-size: 0.9375rem;
  color: #B0B0B0;
  margin-bottom: var(--space-m);
  line-height: 1.5;
}
.footer-bottom {
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: var(--space-l) var(--space-l) 0;
  border-top: 1px solid #333;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: #777;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-m);
}

/* ============================================
   PAGE-SPECIFIC: SOBRE
   ============================================ */

/* Long-form prose */
.prose {
  max-width: 760px;
  margin: 0 auto;
}
.prose p {
  font-size: 1.1875rem;
  line-height: 1.75;
  margin-bottom: 1.6em;
}
.prose p.lead {
  font-size: 1.3125rem;
  line-height: 1.6;
  color: var(--color-ink);
  font-weight: 400;
}
.prose p.emphasized {
  font-weight: 600;
  color: var(--color-ink);
  font-size: 1.25rem;
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-m);
  margin-left: -1rem;
}
.prose h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-m);
}
.prose h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-s);
}

/* Sobre hero */
.sobre-hero {
  padding: var(--space-3xl) 0 var(--space-xl);
  background-color: var(--color-bg);
}
.sobre-hero-img {
  max-width: 480px;
  aspect-ratio: 4/5;
  margin: 0 auto var(--space-xl);
  background: linear-gradient(135deg, #2a2a2a, #555);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aaa;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem;
}

/* Recorrido (split layout) */
.split-section {
  background-color: white;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.split-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--space-l);
}
.split-grid.reverse { grid-template-columns: 1fr 1.5fr; }
.split-grid.reverse .split-text { order: 2; }
.split-img {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, #3a3a3a, #6a6a6a);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem;
}
.split-img.warm { background: linear-gradient(135deg, #8b6b4a, #b8956a); color: rgba(255,255,255,0.7); }
.split-text p {
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 1.4em;
}

/* Libros mega-section */
.libros-section {
  background-color: var(--color-bg);
  padding: var(--space-3xl) 0;
}
.sub-block {
  max-width: var(--max-w-wide);
  margin: 0 auto var(--space-3xl);
  padding: 0 var(--space-l);
}
.sub-block:last-child { margin-bottom: 0; }

/* Forthcoming sub-block (dark variant) */
.sub-block-dark {
  background-color: var(--color-bg-dark);
  color: #E8E8E8;
  padding: var(--space-2xl) 0;
  border-radius: 6px;
}
.sub-block-dark .container { max-width: var(--max-w-wide); }

/* Contributions grid */
.contributions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-l);
  margin-top: var(--space-l);
}
.contribution-card {
  background-color: white;
  border: 1px solid var(--color-border);
  padding: var(--space-l);
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--space-m);
  align-items: start;
}
.contribution-cover {
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, #d4d0c8, #a8a4a0);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(0,0,0,0.4);
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  text-align: center;
  padding: 0.5rem;
}
.contribution-cover.elgar { background: linear-gradient(135deg, #2a4d7a, #1a3553); color: rgba(255,255,255,0.4); }
.contribution-cover.gob { background: linear-gradient(135deg, #1a1a3e, #3a3a5e); color: rgba(255,255,255,0.4); }
.contribution-card h4 {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}
.contribution-card .meta {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-muted);
  line-height: 1.4;
}
.contribution-card .role {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-top: 0.4rem;
  display: block;
}

/* Closing CTA */
.closing-cta {
  background-color: var(--color-bg-warm);
  text-align: center;
  padding: var(--space-2xl) 0;
}
.closing-cta p {
  max-width: 640px;
  margin: 0 auto var(--space-l);
  font-size: 1.125rem;
}
.closing-cta-buttons {
  display: flex;
  gap: var(--space-m);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   REUSABLE COMPONENTS — used across multiple pages
   ============================================ */

/* Principles (4 numbered) */
.principles {
  background-color: var(--color-bg-warm);
}
.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-l);
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--space-l);
}
.principle { text-align: left; }
.principle-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-s);
  font-weight: 400;
}
.principle h4 { margin-bottom: var(--space-s); font-size: 1.0625rem; }
.principle p { font-size: 0.9375rem; line-height: 1.55; color: var(--color-muted); }

/* Case cards */
.cases { background-color: var(--color-bg); }
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-l);
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--space-l);
}
.case-card {
  background-color: white;
  padding: var(--space-l);
  border-left: 3px solid var(--color-accent);
}
.case-card .case-tag {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-s);
  font-weight: 600;
}
.case-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: var(--space-m);
  line-height: 1.3;
}
.case-card p {
  font-size: 0.9375rem;
  line-height: 1.55;
  margin-bottom: var(--space-s);
}
.case-card .result {
  font-weight: 600;
  color: var(--color-ink);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-s);
  margin-top: var(--space-m);
}

/* Service hero (2-col with photo) */
.service-hero {
  padding: var(--space-3xl) 0 var(--space-xl);
  background-color: var(--color-bg);
}
.service-hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--space-l);
}
.service-hero h1 {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 600;
  margin-bottom: var(--space-m);
}
.service-hero .lead {
  font-size: 1.25rem;
  line-height: 1.55;
  color: var(--color-muted);
  margin-bottom: var(--space-l);
}
.service-hero-img {
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  text-align: center;
  padding: 2rem;
}
.service-hero-img.dark { background: linear-gradient(135deg, #1a1a1a, #3a3a3a); color: #888; }
.service-hero-img.warm { background: linear-gradient(135deg, #8b6b4a, #b8956a); color: rgba(255,255,255,0.7); }
.service-hero-img.action { background: linear-gradient(135deg, #2a2a2a, #555); color: #aaa; }

/* Service apertura (prose block) */
.service-opener {
  background-color: white;
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.service-opener .prose p {
  font-size: 1.1875rem;
  line-height: 1.7;
}

/* Service lines (3 visible + accordion) */
.service-lines {
  background-color: var(--color-bg);
  padding: var(--space-2xl) 0;
}
.lines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-l);
  max-width: var(--max-w-wide);
  margin: 0 auto;
  padding: 0 var(--space-l);
  margin-bottom: var(--space-xl);
}
.line-card {
  background-color: white;
  padding: var(--space-l);
  border-top: 4px solid var(--color-accent);
}
.line-card h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  margin-bottom: var(--space-s);
}
.line-card p {
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--color-body);
}

.accordion-section {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--space-l);
}
.accordion-section h3 {
  text-align: center;
  margin-bottom: var(--space-l);
  font-family: var(--font-sans);
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
}
details.line-accordion {
  border-bottom: 1px solid var(--color-border);
}
details.line-accordion:first-child { border-top: 1px solid var(--color-border); }
details.line-accordion summary {
  padding: var(--space-m) 0;
  cursor: pointer;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.0625rem;
  color: var(--color-ink);
  list-style: none;
  position: relative;
  padding-right: 2rem;
}
details.line-accordion summary::-webkit-details-marker { display: none; }
details.line-accordion summary::after {
  content: '+';
  position: absolute;
  right: 0.25rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--color-accent);
  font-weight: 400;
  transition: transform 0.2s;
}
details.line-accordion[open] summary::after { content: '−'; }
details.line-accordion summary:hover { color: var(--color-accent); }
details.line-accordion .content {
  padding: 0 0 var(--space-m) 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-body);
}

/* Filter / anti-positioning section */
.filter-section {
  background-color: var(--color-bg-warm);
  padding: var(--space-2xl) 0;
}
.filter-section .container-narrow .prose p {
  font-size: 1.0625rem;
}
.filter-section h2 {
  margin-bottom: var(--space-l);
  font-family: var(--font-serif);
  font-style: italic;
}

/* Start form (cualificador) — moved from inline */
.start-form {
  background-color: white;
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
}
.start-form-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-l);
}
.start-form h2 {
  margin-bottom: var(--space-m);
  text-align: center;
}
.start-form .intro {
  text-align: center;
  color: var(--color-muted);
  margin-bottom: var(--space-xl);
  font-size: 1.0625rem;
  line-height: 1.6;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-m);
}
.form-grid .full { grid-column: 1 / -1; }
.form-field label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  background-color: var(--color-bg);
  color: var(--color-ink);
}
.form-field textarea { min-height: 120px; resize: vertical; }
.form-submit { text-align: center; margin-top: var(--space-l); }
.form-microcopy {
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-light);
  margin-top: var(--space-s);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .hero-photo { max-width: 480px; }
  .article-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .books-grid { grid-template-columns: 1fr; }
  .forthcoming-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .forthcoming-mockup { max-width: 360px; margin: 0 auto; }
  .prensa-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-l); }
  section { padding: var(--space-xl) 0; }
  .split-grid, .split-grid.reverse { grid-template-columns: 1fr; gap: var(--space-xl); }
  .split-grid.reverse .split-text { order: unset; }
  .split-img { max-width: 480px; margin: 0 auto; }
  .contributions-grid { grid-template-columns: 1fr; }
  .service-hero-grid { grid-template-columns: 1fr; gap: var(--space-xl); }
  .service-hero-img { max-width: 420px; margin: 0 auto; }
  .lines-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .principles-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-nav { display: none; }
  .container, .container-narrow, .hero-grid, .footer-grid { padding-left: var(--space-m); padding-right: var(--space-m); }
  .hero-form, .newsletter form, .forthcoming-form form { flex-direction: column; }
  .prensa-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .credentials-logos { gap: var(--space-m); }
}