/*
Theme Name: D4R
Theme URI: https://d4r.es
Author: D4R
Description: Blog público con diseño TAIS – paleta azul, glassmorphism, Inter.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: d4r
*/

/* ─── TAIS tokens ─────────────────────────────────────────────────── */
:root {
  --tais-deep:    #072146;
  --tais-primary: #004481;
  --tais-bright:  #1973b8;
  --tais-sky:     #49a5e6;
  --tais-bg:      #f4f7fa;
  --tais-text:    #0d1b2a;
  --tais-muted:   #6b7a90;
  --tais-border:  rgba(0,68,129,0.10);
  --tais-glass:   rgba(255,255,255,0.72);
  --radius-card:  30px;
  --shadow-card:  0 16px 32px rgba(0,68,129,0.07);
  --shadow-nav:   0 2px 24px rgba(7,33,70,0.08);
  --font-sans:    'Inter', system-ui, sans-serif;
  --transition:   0.2s ease;
}

/* ─── Reset & base ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--tais-bg);
  color: var(--tais-text);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--tais-bright); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--tais-primary); }

/* ─── Tricolor bar ────────────────────────────────────────────────── */
.tricolor {
  height: 4px;
  background: linear-gradient(90deg,
    var(--tais-deep)   0%   33%,
    var(--tais-bright) 33%  66%,
    var(--tais-sky)    66% 100%
  );
}

/* ─── Nav ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--tais-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--tais-border);
  box-shadow: var(--shadow-nav);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--tais-deep);
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.site-logo span { color: var(--tais-bright); }

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 8px;
}

.main-nav a {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--tais-text);
  transition: background var(--transition), color var(--transition);
}

.main-nav a:hover,
.main-nav .current-menu-item > a {
  background: rgba(25,115,184,0.1);
  color: var(--tais-primary);
}

.nav-search form { display: flex; gap: 8px; }

.nav-search input {
  padding: 7px 14px;
  border-radius: 20px;
  border: 1px solid var(--tais-border);
  background: rgba(255,255,255,0.6);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--transition);
  width: 200px;
}

.nav-search input:focus { border-color: var(--tais-sky); }

/* ─── Layout ──────────────────────────────────────────────────────── */
.site-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* ─── Hero section (index) ────────────────────────────────────────── */
.hero-section {
  margin-bottom: 56px;
}

.hero-section h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--tais-deep);
  margin-bottom: 12px;
}

.hero-section p {
  font-size: 1.125rem;
  color: var(--tais-muted);
  max-width: 520px;
}

/* ─── Section header ──────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 28px;
}

.section-title {
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--tais-deep);
}

.see-all {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--tais-bright);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── Post grid ───────────────────────────────────────────────────── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 900px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .posts-grid { grid-template-columns: 1fr; } }

/* ─── Post card ───────────────────────────────────────────────────── */
.post-card {
  background: white;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--tais-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition);
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(0,68,129,0.12);
}

.card-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--tais-bg) 0%, rgba(73,165,230,0.1) 100%);
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.post-card:hover .card-thumb img { transform: scale(1.04); }

.card-body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }

.cat-pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: rgba(25,115,184,0.1);
  color: var(--tais-bright);
  margin-bottom: 10px;
  width: fit-content;
}

.card-title {
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--tais-deep);
  margin-bottom: 10px;
  flex: 1;
}

.card-title a { color: inherit; }
.card-title a:hover { color: var(--tais-bright); }

.card-excerpt {
  font-size: 0.875rem;
  color: var(--tais-muted);
  line-height: 1.55;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
}

.card-time {
  font-size: 0.78rem;
  color: var(--tais-muted);
  font-weight: 500;
}

.card-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--tais-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.875rem;
  transition: background var(--transition);
}

.card-arrow:hover { background: var(--tais-bright); color: white; }

/* ─── Featured card (first post) ─────────────────────────────────── */
.post-card.is-featured {
  grid-column: span 3;
  flex-direction: row;
  max-height: 340px;
}

@media (max-width: 900px) { .post-card.is-featured { flex-direction: column; grid-column: span 2; max-height: none; } }
@media (max-width: 580px) { .post-card.is-featured { grid-column: span 1; } }

.post-card.is-featured .card-thumb {
  width: 46%;
  aspect-ratio: unset;
  flex-shrink: 0;
}

@media (max-width: 900px) { .post-card.is-featured .card-thumb { width: 100%; aspect-ratio: 16/8; } }

.post-card.is-featured .card-body { padding: 32px 36px; }

.post-card.is-featured .card-title {
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}

/* ─── Pagination ──────────────────────────────────────────────────── */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 56px;
}

.pagination a,
.pagination .current {
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.pagination a { background: white; border: 1px solid var(--tais-border); color: var(--tais-text); }
.pagination a:hover { background: var(--tais-primary); color: white; border-color: var(--tais-primary); }
.pagination .current { background: var(--tais-primary); color: white; border: 1px solid var(--tais-primary); }

/* ─── Single post ─────────────────────────────────────────────────── */
.single-hero {
  max-width: 800px;
  margin: 0 auto 48px;
}

.single-cat { margin-bottom: 16px; }

.single-title {
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  color: var(--tais-deep);
  margin-bottom: 20px;
}

.single-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 0;
  border-top: 1px solid var(--tais-border);
  border-bottom: 1px solid var(--tais-border);
  margin-bottom: 32px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--tais-bg);
  flex-shrink: 0;
}

.author-avatar img { width: 100%; height: 100%; object-fit: cover; }

.author-info strong { display: block; font-size: 0.875rem; font-weight: 700; color: var(--tais-deep); }
.author-info span { font-size: 0.8rem; color: var(--tais-muted); }

.single-image {
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-card);
}

.single-image img { width: 100%; }

/* ─── Prose ───────────────────────────────────────────────────────── */
.prose {
  max-width: 720px;
  margin: 0 auto;
}

.prose p { margin-bottom: 1.5em; font-size: 1.0625rem; line-height: 1.75; color: var(--tais-text); }

.prose h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--tais-deep);
  margin: 2.5em 0 0.75em;
  padding-top: 2em;
  border-top: 2px solid var(--tais-border);
}

.prose h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--tais-deep);
  margin: 2em 0 0.6em;
}

.prose blockquote {
  border-left: 4px solid var(--tais-primary);
  padding: 16px 24px;
  margin: 2em 0;
  background: rgba(0,68,129,0.04);
  border-radius: 0 12px 12px 0;
}

.prose blockquote p {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--tais-primary);
  margin-bottom: 0;
}

.prose ul, .prose ol { padding-left: 1.5em; margin-bottom: 1.5em; }
.prose li { margin-bottom: 0.5em; }

.prose a { color: var(--tais-bright); text-decoration: underline; text-decoration-color: rgba(25,115,184,0.3); }
.prose a:hover { text-decoration-color: var(--tais-bright); }

.prose img { border-radius: 16px; margin: 2em 0; }

.prose code {
  background: rgba(0,68,129,0.07);
  border-radius: 6px;
  padding: 2px 6px;
  font-size: 0.875em;
  font-family: 'JetBrains Mono', monospace;
}

.prose pre {
  background: var(--tais-deep);
  border-radius: 12px;
  padding: 24px;
  overflow-x: auto;
  margin: 2em 0;
}

.prose pre code { background: none; color: #e2e8f0; font-size: 0.9rem; }

/* ─── Tags ────────────────────────────────────────────────────────── */
.post-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 40px 0; }

.tag-pill {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: white;
  border: 1px solid var(--tais-border);
  color: var(--tais-text);
  transition: background var(--transition), color var(--transition);
}

.tag-pill:hover { background: var(--tais-primary); color: white; border-color: var(--tais-primary); }

/* ─── Author card ─────────────────────────────────────────────────── */
.author-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: white;
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--tais-border);
  margin: 48px 0;
}

.author-card-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--tais-bg);
}

.author-card-avatar img { width: 100%; height: 100%; object-fit: cover; }

.author-card-info strong { display: block; font-size: 1rem; font-weight: 700; color: var(--tais-deep); margin-bottom: 4px; }
.author-card-info p { font-size: 0.875rem; color: var(--tais-muted); margin: 0; }

/* ─── Related posts ───────────────────────────────────────────────── */
.related-posts { margin-top: 64px; }

/* ─── Sidebar ─────────────────────────────────────────────────────── */
.content-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

@media (max-width: 900px) { .content-sidebar { grid-template-columns: 1fr; } }

.sidebar-widget {
  background: white;
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--tais-border);
  margin-bottom: 24px;
}

.widget-title {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tais-muted);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--tais-border);
}

/* ─── Footer ──────────────────────────────────────────────────────── */
.site-footer {
  background: var(--tais-deep);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

@media (max-width: 700px) { .footer-inner { grid-template-columns: 1fr; } }

.footer-brand .site-logo { color: white; font-size: 1.3rem; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 0.875rem; max-width: 280px; }

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: white;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { font-size: 0.875rem; color: rgba(255,255,255,0.6); }
.footer-col a:hover { color: var(--tais-sky); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 24px;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  flex-wrap: wrap;
  gap: 8px;
}

/* ─── Page / 404 ──────────────────────────────────────────────────── */
.page-hero { max-width: 720px; margin: 0 auto 48px; }

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--tais-deep);
  margin-bottom: 12px;
}

.not-found-block { text-align: center; padding: 80px 24px; }

.not-found-block .code {
  font-size: 8rem;
  font-weight: 900;
  color: var(--tais-primary);
  opacity: 0.12;
  line-height: 1;
  margin-bottom: -48px;
}

.not-found-block h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--tais-deep);
  margin-bottom: 12px;
}

.not-found-block p { color: var(--tais-muted); margin-bottom: 32px; }

.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 24px;
  background: var(--tais-primary);
  color: white;
  font-weight: 700;
  font-size: 0.9375rem;
  transition: background var(--transition);
}

.btn-primary:hover { background: var(--tais-bright); color: white; }

/* ─── Search results ──────────────────────────────────────────────── */
.search-header { margin-bottom: 40px; }

.search-header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--tais-deep);
}

.search-header p { color: var(--tais-muted); }

/* ─── Utilities ───────────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }