*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #3b6064;
  --color-primary-dark: #2d4a4e;
  --color-primary-light: #55828b;
  --color-accent: #87bba2;
  --color-accent-light: #c9e4ca;
  --color-bg: #fafcfa;
  --color-bg-alt: #f0f5f2;
  --color-text: #364958;
  --color-text-light: #55828b;
  --color-text-muted: #7a9298;
  --color-white: #ffffff;
  --color-border: #dde8e3;
  --color-shadow: rgba(54, 73, 88, 0.08);
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: system-ui, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1120px;
  --radius: 10px;
  --radius-sm: 6px;
  --transition: 0.25s ease;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  scroll-padding-top: 70px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.25;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); }
h3 { font-size: 1.2rem; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary-light); }

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.8rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  letter-spacing: 0.01em;
}
.btn:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(59, 96, 100, 0.25);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ── Header ── */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}
.site-header .logo {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.site-header .logo:hover { color: var(--color-primary); }
.site-header nav {
  display: flex;
  gap: 0.3rem;
  align-items: center;
}
.site-header nav a {
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--color-text);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  transition: all var(--transition);
}
.site-header nav a:hover,
.site-header nav a.active {
  background: var(--color-accent-light);
  color: var(--color-primary);
}

/* ── Hero ── */
.hero {
  background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-primary) 40%, #3b6064 100%);
  color: var(--color-white);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(135,187,162,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201,228,202,0.1) 0%, transparent 70%);
  border-radius: 50%;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero .hero-content h1 {
  color: var(--color-white);
  font-size: clamp(2.2rem, 5.5vw, 3rem);
  margin-bottom: 1rem;
  line-height: 1.15;
}
.hero .hero-content .subtitle {
  font-size: 1.05rem;
  opacity: 0.88;
  line-height: 1.7;
  margin-bottom: 0.5rem;
}
.hero .hero-content .awards {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 1.2rem;
  color: var(--color-accent-light);
}
.hero .hero-content .btn {
  background: var(--color-white);
  color: var(--color-primary-dark);
  padding: 0.85rem 2.2rem;
  font-size: 1rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.hero .hero-content .btn:hover {
  background: var(--color-accent-light);
  color: var(--color-primary-dark);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.3);
}
.hero .hero-image {
  display: flex;
  justify-content: center;
}
.hero .hero-image img {
  border-radius: 50% 50% 50% 50% / 40% 40% 60% 60%;
  width: 100%;
  max-width: 380px;
  height: auto;
  border: 4px solid rgba(255,255,255,0.15);
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

/* ── Social icons (SVG circles) ── */
.social-links {
  display: flex;
  gap: 0.6rem;
}
.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  transition: all var(--transition);
}
.social-links a:hover {
  background: rgba(255,255,255,0.25);
  transform: translateY(-2px);
}
.social-links a svg {
  width: 1.1rem;
  height: 1.1rem;
  fill: var(--color-white);
}

/* ── Sections ── */
.section {
  padding: 3rem 0;
}
.section-alt {
  background: var(--color-bg-alt);
}
.section-header {
  text-align: center;
  margin-bottom: 2rem;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}
.section-title {
  margin-bottom: 0.8rem;
}
.section-subtitle {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1rem;
}

/* ── Decorative divider ── */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  margin: 0.5rem 0 1.2rem;
}
.divider span {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-light);
}
.divider span:first-child,
.divider span:last-child {
  width: 6px;
  height: 6px;
  opacity: 0.5;
}

/* ── Bio block ── */
#bio {
  min-height: calc(100vh - 60px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 0;
}
#bio .container {
  width: 100%;
}
#bio .section-header {
  margin-bottom: 1.2rem;
}
#bio .section-header .divider {
  margin-bottom: 0.4rem;
}
.bio-block {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 1.8rem;
  align-items: start;
}
.bio-photo {
  position: relative;
}
.bio-photo::after {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--color-accent);
  border-radius: var(--radius);
  z-index: -1;
}
.bio-photo img {
  border-radius: var(--radius);
  box-shadow: 0 8px 30px var(--color-shadow);
  width: 100%;
}
.bio-content p {
  margin-bottom: 0.5rem;
  line-height: 1.5;
  font-size: 0.93rem;
}

/* ── Highlights ── */
.highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
  margin-top: 1rem;
}
.highlight-item {
  text-align: center;
  padding: 0.7rem 0.5rem;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: transform var(--transition);
}
.highlight-item:hover { transform: translateY(-3px); }
.highlight-item .hl-number {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}
.highlight-item .hl-label {
  font-size: 0.72rem;
  color: var(--color-text-light);
  margin-top: 0.2rem;
}

/* ── Book grid ── */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}
.book-card {
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition);
}
.book-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(54, 73, 88, 0.12);
  border-color: var(--color-accent);
}
.book-card a { color: inherit; display: block; }
.book-card .cover {
  background: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  height: 280px;
}
.book-card .cover img {
  width: auto;
  height: 100%;
  max-width: 100%;
  display: block;
}
.book-card .cover .placeholder {
  font-size: 3rem;
  color: var(--color-border);
}
.book-card .info {
  padding: 1rem;
}
.book-card .info h3 {
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
  line-height: 1.3;
}
.book-card .info .meta {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ── Catálogo: tarjetas ── */
#book-grid {
  grid-auto-rows: 1fr;
}
#book-grid .book-card {
  display: flex;
  flex-direction: column;
}
#book-grid .book-card .info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
#book-grid .book-card .cover .placeholder {
  padding: 2rem 0;
}

/* ── Últimos libros (portada) ── */
#libros {
  padding: 2rem 0;
}
#libros .section-header {
  margin-bottom: 1.2rem;
}
#libros .section-header .divider {
  margin-bottom: 0.4rem;
}
#libros .book-grid {
  gap: 1.2rem;
}

/* ── Book detail ── */
.book-detail-section {
  padding: 2rem 0;
}
.book-detail {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 2.5rem;
  padding: 1.5rem 0;
  width: 100%;
}
.book-detail .book-cover img {
  border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
  max-width: 100%;
  height: auto;
}
.book-detail .book-info {
  height: 100%;
  display: flex;
  flex-direction: column;
}
.book-detail .book-info h1 { margin: 0 0 0.7rem; font-size: 1.7rem; }
.book-detail .book-info .meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.3rem 1.5rem;
  margin-bottom: 0.8rem;
}
.book-detail .book-info .meta-line {
  color: var(--color-text-light);
  font-size: 0.88rem;
}
.book-detail .book-info .meta-line strong { color: var(--color-text); }
.sinopsis {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--color-border, rgba(0, 0, 0, 0.08));
  text-align: justify;
  line-height: 1.5;
  font-size: 0.96rem;
  width: 100%;
}
.book-detail .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin: 0.4rem 0;
}
.book-detail .tags .tag {
  background: var(--color-accent-light);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 500;
}
.book-detail .amazon-link { margin-top: 1rem; }

/* ── Filters ── */
.container-wide {
  max-width: 1440px;
}
.catalogo-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 2.5rem;
  align-items: start;
}
.catalogo-sidebar {
  background: var(--color-white);
  padding: 1.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.catalogo-sidebar .filter-section {
  margin-bottom: 1.4rem;
}
.catalogo-sidebar .filter-section:last-child { margin-bottom: 0; }
.catalogo-sidebar .filter-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}
.catalogo-sidebar .filter-pills {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}
.catalogo-sidebar .filter-pill {
  flex: 0 0 auto;
  text-align: center;
  white-space: nowrap;
}
.catalogo-sidebar .filter-pill.tema-extra { display: none; }
.catalogo-sidebar #tema-pills.ver-todos .filter-pill.tema-extra { display: inline-block; }
.catalogo-sidebar .filter-pill.idioma-extra { display: none; }
.catalogo-sidebar #idioma-pills.ver-todos .filter-pill.idioma-extra { display: inline-block; }
.catalogo-sidebar .filter-toggle {
  margin-top: 0.6rem;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  cursor: pointer;
}
.catalogo-sidebar .filter-toggle:hover { text-decoration: underline; }
.catalogo-results { min-width: 0; }
@media (max-width: 900px) {
  .catalogo-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .catalogo-sidebar {
    position: static;
  }
}

.filters-bar {
  background: var(--color-white);
  padding: 1.8rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin: 2rem 0;
}
.filters-bar .filter-section {
  margin-bottom: 1.2rem;
}
.filters-bar .filter-section:last-child { margin-bottom: 0; }
.filters-bar .filter-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.filter-pill {
  padding: 0.4rem 1rem;
  border-radius: 999px;
  border: 1.5px solid var(--color-border);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.filter-pill:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}
.filter-pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}
.filter-search {
  position: relative;
  max-width: 360px;
}
.filter-search input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: all var(--transition);
  background: var(--color-bg);
}
.filter-search input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(135, 187, 162, 0.15);
}
.filter-search .search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
  font-size: 0.9rem;
}
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: flex-start;
}
.filter-row > * { flex: 1; min-width: 250px; }

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 0.8rem;
  font-size: 0.85rem;
  color: var(--color-text-light);
}
.active-filters .chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.7rem;
  background: var(--color-accent-light);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
}
.active-filters .chip button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  margin-left: 0.1rem;
  opacity: 0.6;
}
.active-filters .chip button:hover { opacity: 1; }
.active-filters .clear-all {
  font-size: 0.8rem;
  color: var(--color-primary);
  cursor: pointer;
  font-weight: 600;
  border: none;
  background: none;
  margin-left: 0.3rem;
}
.active-filters .clear-all:hover { text-decoration: underline; }

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.results-count {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}
.results-count strong { color: var(--color-text); }
.sort-select {
  padding: 0.5rem 2rem 0.5rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  background: var(--color-white);
  cursor: pointer;
  color: var(--color-text);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2355828b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  transition: border-color var(--transition);
}
.sort-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
}
.empty-state .empty-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}
.empty-state h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}
.empty-state p {
  color: var(--color-text-muted);
  margin-bottom: 1.2rem;
}

/* Book card extra */
.book-card .info .book-themes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  margin-top: 0.4rem;
}
.book-card .info .book-themes span {
  font-size: 0.68rem;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
}

/* ── Interviews ── */
#entrevistas {
  padding: 2rem 0;
}
#entrevistas .section-header {
  margin-bottom: 1.2rem;
}
#entrevistas .section-header .divider {
  margin-bottom: 0.4rem;
}
#entrevistas .interviews-grid {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.2rem;
}
#entrevistas .video-wrapper {
  height: 170px;
  padding-bottom: 0;
}
#entrevistas .interview-card .card-body {
  padding: 0.9rem;
}
.interviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
}
.interview-card {
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition);
}
.interview-card:hover {
  box-shadow: 0 12px 32px var(--color-shadow);
  border-color: var(--color-accent);
}
.interview-card .video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  background: var(--color-primary-dark);
}
.interview-card .video-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}
.interview-card .youtube-link {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--color-primary-dark);
}
.interview-card .youtube-link svg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3rem;
  height: 3rem;
  fill: var(--color-white);
  opacity: 0.9;
}
.interview-card .card-body {
  padding: 1.2rem;
}
.interview-card .card-body .source {
  font-size: 0.78rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.3rem;
}
.interview-card .card-body h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.interview-card .card-body .date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.interview-card .card-body a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.7rem;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ── Contact form ── */
#contacto {
  padding: 2rem 0;
}
#contacto .section-header {
  margin-bottom: 1.2rem;
}
#contacto .section-header .divider {
  margin-bottom: 0.4rem;
}
#contacto .section-subtitle {
  font-size: 0.9rem;
  margin-top: -0.3rem;
}
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}
.contact-info h3 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}
.contact-info p {
  color: var(--color-text-light);
  margin-bottom: 0.8rem;
  font-size: 0.92rem;
  line-height: 1.6;
}
.contact-info .info-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.6rem;
  font-size: 0.92rem;
}
.contact-social {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}
.contact-info .info-icon {
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.contact-info .info-icon:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.12);
}
.contact-info .info-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}
.contact-form { max-width: 100%; }
.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}
.contact-form .form-group { margin-bottom: 0.8rem; }
.contact-form label {
  display: block;
  margin-bottom: 0.3rem;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text);
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: var(--color-white);
  transition: all var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(135, 187, 162, 0.15);
}
.contact-form textarea { min-height: 110px; resize: vertical; }
.form-success {
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.2rem;
  color: var(--color-primary);
  font-weight: 600;
  text-align: center;
  display: none;
}

/* ── Footer ── */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 2rem 0 0;
  font-size: 0.9rem;
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 1.5rem;
}
.site-footer h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 0.7rem;
}
.site-footer a {
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}
.site-footer a:hover { color: var(--color-white); }
.site-footer .footer-brand p {
  margin-top: 0.4rem;
  line-height: 1.5;
}
.site-footer .footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 0.9rem 0;
  text-align: center;
  font-size: 0.82rem;
}
.site-footer .footer-social {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.6rem;
}
.site-footer .footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: all var(--transition);
}
.site-footer .footer-social a:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}
.site-footer .footer-social a svg {
  width: 1rem;
  height: 1rem;
  fill: var(--color-white);
}

/* ── Privacy page ── */
.privacy-content {
  max-width: 800px;
}
.privacy-content h2 {
  margin-top: 2.5rem;
  margin-bottom: 0.8rem;
  font-size: 1.3rem;
}
.privacy-content p,
.privacy-content ul {
  margin-bottom: 1rem;
  line-height: 1.8;
}
.privacy-content ul { padding-left: 1.5rem; }

/* ── Back to top ── */
.back-to-top {
  display: none;
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  z-index: 50;
  font-size: 1.2rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transition: all var(--transition);
}
.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  html { font-size: 16px; }
  .section { padding: 3rem 0; }

  .hero {
    padding: 3rem 0 4rem;
    text-align: center;
  }
  .hero .container { grid-template-columns: 1fr; gap: 2rem; }
  .hero .hero-image { order: -1; }
  .hero .hero-image img { max-width: 220px; }
  .hero .social-links { justify-content: center; }
  .hero-content .btn { margin: 0 auto; }

  .site-header nav a { font-size: 0.78rem; padding: 0.3rem 0.5rem; }

  .bio-block { grid-template-columns: 1fr; gap: 2rem; }
  .bio-photo { max-width: 220px; margin: 0 auto; }

  .highlights { grid-template-columns: repeat(2, 1fr); }

  .book-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1rem; }

  .book-detail { grid-template-columns: 1fr; gap: 2rem; }
  .book-detail .book-cover { max-width: 280px; margin: 0 auto; order: -1; }
  .book-detail .book-info .meta-grid { grid-template-columns: 1fr; gap: 0.4rem 0; }

  .interviews-grid { grid-template-columns: 1fr; }
  #entrevistas .video-wrapper { height: 180px; }

  .contact-wrapper { grid-template-columns: 1fr; gap: 2rem; }
  .contact-form .form-row { grid-template-columns: 1fr; }

  .site-footer .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (max-width: 480px) {
  .site-header nav { gap: 0; }
  .site-header nav a { font-size: 0.72rem; padding: 0.25rem 0.4rem; }
  .hero .hero-content h1 { font-size: 1.8rem; }
  .highlights { grid-template-columns: 1fr 1fr; }
}