/*
 * Theme Name: LaiaAgentica
 * Theme URI: https://laiaagentica.es
 * Description: Tema personalizado para LaiaAgentica - Blog de Inteligencia Artificial generado con IA
 * Version: 1.0.0
 * Author: LaiaAgentica
 * Author URI: https://laiaagentica.es
 * License: GPL-2.0-or-later
 * Text Domain: laiaagentica
 * Tags: dark, technology, ai, blog, responsive
 */

/* =========================================
   VARIABLES & RESET
   ========================================= */
:root {
  --bg-primary:       #080c14;
  --bg-secondary:     #0d1117;
  --bg-card:          rgba(255, 255, 255, 0.04);
  --bg-card-hover:    rgba(255, 255, 255, 0.07);
  --border-color:     rgba(255, 255, 255, 0.08);
  --border-accent:    rgba(26, 154, 150, 0.35);
  --text-primary:     #fefefe;
  --text-secondary:   #8b949e;
  --text-muted:       #6e7681;
  --accent-blue:      #1a9a96;
  --accent-purple:    #1b9e9a;
  --accent-cyan:      #1a9a96;
  --accent-green:     #22c55e;
  --gradient-main:    linear-gradient(135deg, #1a9a96 0%, #1b9e9a 100%);
  --gradient-text:    linear-gradient(135deg, #fefefe 0%, #1a9a96 50%, #1b9e9a 100%);
  --glow-blue:        0 0 30px rgba(26, 154, 150, 0.2);
  --glow-purple:      0 0 30px rgba(27, 158, 154, 0.2);
  --radius-sm:        6px;
  --radius-md:        12px;
  --radius-lg:        20px;
  --radius-xl:        28px;
  --transition:       0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:        'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --max-width:        1200px;
  --header-height:    72px;
  --shadow-card:      0 4px 24px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(255,255,255,0.05) inset;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image:
    radial-gradient(ellipse 60% 40% at 15% 30%, rgba(26, 154, 150, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 85% 10%, rgba(27, 158, 154, 0.06) 0%, transparent 60%),
    linear-gradient(rgba(26, 154, 150, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 154, 150, 0.018) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 64px 64px, 64px 64px;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-purple); }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; }

/* =========================================
   UTILITIES
   ========================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(0, 180, 216, 0.1);
  border: 1px solid rgba(0, 180, 216, 0.25);
  color: var(--accent-blue);
}

.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 6px var(--accent-blue);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* =========================================
   HEADER & NAV
   ========================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-color);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  width: 36px; height: 36px;
  background: var(--gradient-main);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--glow-blue);
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  -webkit-text-fill-color: var(--text-muted);
  display: block;
  line-height: 1;
  margin-top: 2px;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}

.site-nav a:hover,
.site-nav a.current-menu-item {
  color: var(--text-primary);
  background: var(--bg-card);
}

.site-nav a.current-menu-item::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent-blue);
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 20px; height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0; right: 0;
  background: rgba(8, 12, 20, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px 24px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  border: 1px solid transparent;
}

.mobile-menu a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
  border-color: var(--border-color);
}

/* =========================================
   PAGE WRAPPER
   ========================================= */
.page-wrapper {
  padding-top: var(--header-height);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

/* =========================================
   HERO – HOME
   ========================================= */
.home-hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.home-hero::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%; transform: translateX(-50%);
  width: 600px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,180,216,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 20px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* =========================================
   SECTION HEADERS
   ========================================= */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: '';
  display: block;
  width: 4px; height: 22px;
  background: var(--gradient-main);
  border-radius: 2px;
}

.view-all {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid rgba(0,180,216,0.2);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.view-all:hover {
  background: rgba(0,180,216,0.08);
  border-color: rgba(0,180,216,0.4);
  gap: 10px;
}

/* =========================================
   POST GRID
   ========================================= */
.posts-section {
  padding: 20px 0 80px;
}

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

/* Featured post – full width */
.posts-grid .post-card:first-child {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 0;
}

.posts-grid .post-card:first-child .card-image {
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
  height: 100%;
  min-height: 260px;
}

.posts-grid .post-card:first-child .card-body {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.posts-grid .post-card:first-child .card-title {
  font-size: 1.5rem;
}

.posts-grid .post-card:first-child .card-excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =========================================
   POST CARD
   ========================================= */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card), var(--glow-blue);
}

.card-image {
  position: relative;
  overflow: hidden;
  height: 200px;
  background: linear-gradient(135deg, #0d1b2a, #1a1a2e);
}

.card-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .card-image img { transform: scale(1.05); }

/* placeholder when no image */
.card-image-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, #0d1b2a 0%, #160d2b 100%);
  position: relative;
  overflow: hidden;
}

.card-image-placeholder::after {
  content: '';
  position: absolute; inset: 0;
  background: var(--gradient-main);
  opacity: 0.08;
}

.card-category {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(8, 12, 20, 0.85);
  backdrop-filter: blur(8px);
  color: var(--accent-blue);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0,180,216,0.25);
}

.card-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.card-meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: color var(--transition);
}

.card-title a { color: inherit; text-decoration: none; }
.post-card:hover .card-title a { color: var(--accent-blue); }

.card-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin-bottom: 18px;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.read-more {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

.read-more:hover { gap: 10px; color: var(--accent-purple); }

.read-more svg {
  transition: transform var(--transition);
}

.read-more:hover svg { transform: translateX(3px); }

.reading-time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* =========================================
   PAGINATION
   ========================================= */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 20px 0 60px;
}

.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
  background: rgba(0,180,216,0.12);
  border-color: rgba(0,180,216,0.35);
  color: var(--accent-blue);
}

.pagination .page-numbers.prev,
.pagination .page-numbers.next {
  width: auto;
  padding: 0 16px;
  gap: 6px;
}

/* =========================================
   SINGLE POST
   ========================================= */
.single-post {
  padding: 60px 0 80px;
  max-width: 800px;
  margin: 0 auto;
}

.post-header {
  margin-bottom: 40px;
}

.post-category-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(168,85,247,0.1);
  border: 1px solid rgba(168,85,247,0.25);
  color: var(--accent-purple);
  margin-bottom: 20px;
}

.post-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin-bottom: 20px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.post-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.post-meta-item svg { opacity: 0.5; }

/* Featured image */
.post-featured-image {
  margin: 32px 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.post-featured-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* Post Content Typography */
.post-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
}

.post-content h2, .post-content h3, .post-content h4 {
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-top: 2.5em;
  margin-bottom: 0.8em;
}

.post-content h2 { font-size: 1.7rem; }
.post-content h3 { font-size: 1.35rem; }
.post-content h4 { font-size: 1.1rem; }

.post-content h2::after,
.post-content h3::after {
  content: '';
  display: block;
  width: 40px; height: 3px;
  background: var(--gradient-main);
  border-radius: 2px;
  margin-top: 8px;
}

.post-content p { margin-bottom: 1.5em; }

.post-content a {
  color: var(--accent-blue);
  text-decoration: underline;
  text-decoration-color: rgba(0,180,216,0.3);
  text-underline-offset: 3px;
  transition: all var(--transition);
}

.post-content a:hover {
  color: var(--accent-purple);
  text-decoration-color: rgba(168,85,247,0.5);
}

.post-content strong {
  color: var(--text-primary);
  font-weight: 700;
}

.post-content em { color: var(--accent-cyan); font-style: italic; }

.post-content ul, .post-content ol {
  padding-left: 0;
  margin-bottom: 1.5em;
  list-style: none;
}

.post-content ul li, .post-content ol li {
  padding-left: 24px;
  margin-bottom: 8px;
  position: relative;
  color: var(--text-secondary);
}

.post-content ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--gradient-main);
}

.post-content ol {
  counter-reset: ol-counter;
}

.post-content ol li {
  counter-increment: ol-counter;
}

.post-content ol li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0; top: 1px;
  font-size: 0.75rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 4px;
  background: rgba(0,180,216,0.1);
  border: 1px solid rgba(0,180,216,0.2);
  color: var(--accent-blue);
  display: flex; align-items: center; justify-content: center;
}

.post-content blockquote {
  margin: 2em 0;
  padding: 20px 24px;
  background: rgba(168,85,247,0.06);
  border-left: 4px solid var(--accent-purple);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: italic;
  position: relative;
}

.post-content blockquote::before {
  content: '"';
  position: absolute;
  top: 10px; left: 20px;
  font-size: 4rem;
  color: var(--accent-purple);
  opacity: 0.2;
  font-family: Georgia, serif;
  line-height: 1;
}

.post-content pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  margin: 1.5em 0;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  position: relative;
}

.post-content pre::before {
  content: '</>';
  position: absolute;
  top: 10px; right: 14px;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.post-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(0,180,216,0.08);
  border: 1px solid rgba(0,180,216,0.15);
  color: var(--accent-cyan);
  padding: 2px 7px;
  border-radius: 4px;
}

.post-content pre code {
  background: none;
  border: none;
  color: #e6edf3;
  padding: 0;
  font-size: inherit;
}

.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.9rem;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.post-content th {
  background: rgba(0,180,216,0.08);
  color: var(--accent-blue);
  font-weight: 700;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

.post-content td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.post-content tr:last-child td { border-bottom: none; }
.post-content tr:hover td { background: var(--bg-card); }

.post-content hr {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border-color), transparent);
  margin: 2.5em 0;
}

.post-content img {
  border-radius: var(--radius-md);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
  margin: 1.5em auto;
}

/* Post Tags */
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.post-tag {
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.post-tag:hover {
  color: var(--accent-purple);
  border-color: rgba(168,85,247,0.3);
  background: rgba(168,85,247,0.06);
}

/* Post Navigation */
.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
}

.nav-prev, .nav-next {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition);
}

.nav-prev:hover, .nav-next:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.nav-next { text-align: right; }

.nav-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* =========================================
   ARCHIVE / CATEGORY
   ========================================= */
.archive-header {
  padding: 60px 0 40px;
  text-align: center;
}

.archive-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.archive-desc {
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

/* =========================================
   404 PAGE
   ========================================= */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: calc(100vh - var(--header-height) - 200px);
  padding: 60px 24px;
}

.error-code {
  font-size: clamp(6rem, 20vw, 12rem);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 1;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  opacity: 0.3;
}

.error-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 400px;
}

.btn-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--gradient-main);
  color: white;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(0,180,216,0.3);
}

.btn-home:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,180,216,0.4);
  color: white;
}

/* =========================================
   FOOTER
   ========================================= */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 48px 0 28px;
  margin-top: auto;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo-text {
  font-size: 1.3rem;
  display: block;
  -webkit-text-fill-color: transparent;
}

.footer-brand .logo-sub {
  -webkit-text-fill-color: var(--text-muted);
  display: block;
  margin-top: 4px;
  font-size: 0.7rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
  margin-top: 14px;
  max-width: 280px;
}

.footer-ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 6px 12px;
  background: rgba(168,85,247,0.08);
  border: 1px solid rgba(168,85,247,0.2);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--accent-purple);
  font-weight: 600;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-links li { margin-bottom: 10px; }

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a::before {
  content: '→';
  color: var(--accent-blue);
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--text-primary);
  transform: translateX(6px);
}

.footer-links a:hover::before { opacity: 1; transform: translateX(0); }

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 0.83rem;
  color: var(--text-muted);
}

.footer-copy span {
  color: var(--accent-blue);
  font-weight: 600;
}

.footer-tech {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tech-pill {
  padding: 3px 9px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* =========================================
   NO POSTS / EMPTY
   ========================================= */
.no-posts {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}

.no-posts-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.no-posts h3 { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 8px; }

/* =========================================
   SEARCH FORM
   ========================================= */
.search-form {
  display: flex;
  gap: 8px;
  max-width: 480px;
  margin: 0 auto;
}

.search-form input {
  flex: 1;
  padding: 12px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
}

.search-form input:focus {
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px rgba(0,180,216,0.1);
}

.search-form input::placeholder { color: var(--text-muted); }

.search-form button {
  padding: 12px 20px;
  background: var(--gradient-main);
  border: none;
  border-radius: var(--radius-sm);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.search-form button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0,180,216,0.3);
}

/* =========================================
   SCROLLBAR
   ========================================= */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); }

/* =========================================
   RESPONSIVE – TABLET
   ========================================= */
@media (max-width: 1024px) {
  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .posts-grid .post-card:first-child {
    grid-template-columns: 1fr;
  }

  .posts-grid .post-card:first-child .card-image {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    height: 220px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand { grid-column: 1 / -1; }
  .footer-desc { max-width: 100%; }
}

/* =========================================
   RESPONSIVE – MOBILE
   ========================================= */
@media (max-width: 768px) {
  .container { padding: 0 16px; }

  .site-nav { display: none; }
  .menu-toggle { display: flex; }

  .home-hero { padding: 48px 0 36px; }

  .hero-stats { gap: 24px; }

  .posts-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .posts-grid .post-card:first-child {
    grid-template-columns: 1fr;
  }

  .posts-grid .post-card:first-child .card-image {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    height: 200px;
  }

  .posts-grid .post-card:first-child .card-body {
    padding: 20px;
  }

  .posts-grid .post-card:first-child .card-title {
    font-size: 1.2rem;
  }

  .section-header { flex-direction: column; align-items: flex-start; }

  .single-post { padding: 40px 0 60px; }

  .post-title { font-size: 1.7rem; }

  .post-navigation {
    grid-template-columns: 1fr;
  }

  .post-featured-image img { height: 220px; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-desc { max-width: 100%; }
}

@media (max-width: 480px) {
  .hero-title { letter-spacing: -0.03em; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .card-body { padding: 18px; }
  .post-meta { gap: 12px; }
  .single-post { padding: 30px 0 50px; }
}