/*
Theme Name: TecnoGadgets
Theme URI: https://tecnogadgets.com
Author: TecnoGadgets Team
Description: Tema profesional bilingüe para blog de tecnología y gadgets, optimizado para SEO y AdSense
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: tecnogadgets
Tags: blog, technology, bilingual, adsense, seo, responsive
*/

/* =============================================
   RESET & BASE
============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary: #0F172A;
  --color-accent: #3B82F6;
  --color-accent-dark: #1D4ED8;
  --color-accent-light: #EFF6FF;
  --color-text: #1E293B;
  --color-muted: #64748B;
  --color-border: #E2E8F0;
  --color-bg: #F8FAFC;
  --color-white: #FFFFFF;
  --color-card: #FFFFFF;
  --color-success: #10B981;
  --color-tag-bg: #F1F5F9;
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: 'Georgia', 'Times New Roman', serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.12);
  --max-width: 1200px;
  --content-width: 780px;
  --sidebar-width: 340px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { padding-left: 1.5rem; }

/* =============================================
   TYPOGRAPHY
============================================= */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.4rem); }
h4 { font-size: 1.1rem; }
p { margin-bottom: 1.25rem; }

/* =============================================
   LAYOUT
============================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.site-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 40px;
  align-items: start;
  max-width: var(--max-width);
  margin: 40px auto;
  padding: 0 20px;
}

@media (max-width: 1024px) {
  .site-layout { grid-template-columns: 1fr; }
  .sidebar { order: 2; }
}

/* =============================================
   HEADER
============================================= */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  gap: 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
}

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

/* Navigation */
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  text-decoration: none;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.header-actions { display: flex; align-items: center; gap: 12px; }

.lang-switcher {
  display: flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  font-size: 0.78rem;
  font-weight: 600;
}
.lang-switcher a {
  padding: 4px 10px;
  color: var(--color-muted);
  text-decoration: none;
  transition: all var(--transition);
}
.lang-switcher a.active, .lang-switcher a:hover {
  background: var(--color-accent);
  color: white;
}

.search-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  cursor: pointer;
  color: var(--color-muted);
  font-size: 0.9rem;
  transition: all var(--transition);
}
.search-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--color-text);
  font-size: 1.4rem;
}

/* =============================================
   HERO SECTION
============================================= */
.hero {
  background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 50%, #0F172A 100%);
  color: white;
  padding: 80px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 50%, rgba(59,130,246,.25) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }
.hero-badge {
  display: inline-block;
  background: rgba(59,130,246,.2);
  border: 1px solid rgba(59,130,246,.4);
  color: #93C5FD;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 99px;
  margin-bottom: 20px;
}
.hero h1 { color: white; font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 16px; }
.hero p { color: #CBD5E1; font-size: 1.1rem; margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }

.hero-search {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-search input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  font-size: 0.95rem;
  outline: none;
  font-family: var(--font-sans);
}
.hero-search button {
  background: var(--color-accent);
  border: none;
  color: white;
  padding: 14px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  font-family: var(--font-sans);
}
.hero-search button:hover { background: var(--color-accent-dark); }

/* =============================================
   CATEGORIES BAR
============================================= */
.categories-bar {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.categories-bar::-webkit-scrollbar { display: none; }
.categories-inner {
  display: flex;
  gap: 8px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  width: max-content;
  min-width: 100%;
}
.cat-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 99px;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--color-muted);
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition);
}
.cat-pill:hover, .cat-pill.active {
  background: var(--color-accent-light);
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.cat-pill .emoji { font-size: 1rem; }

/* =============================================
   FEATURED POST (HERO CARD)
============================================= */
.featured-section { margin-bottom: 40px; }
.featured-section h2.section-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.featured-section h2.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-card);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.featured-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.featured-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: linear-gradient(135deg, #1E3A5F, #3B82F6);
  display: flex;
  align-items: center;
  justify-content: center;
}
.featured-img img { width: 100%; height: 100%; object-fit: cover; }
.featured-img .placeholder-img {
  font-size: 5rem;
  opacity: .6;
}

.featured-body { padding: 36px 32px; display: flex; flex-direction: column; justify-content: center; }
.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.post-category {
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 99px;
  text-decoration: none;
}
.featured-body h2 { margin-bottom: 12px; line-height: 1.3; }
.featured-body p { color: var(--color-muted); margin-bottom: 20px; font-size: 0.95rem; }
.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: gap var(--transition);
}
.read-more:hover { gap: 10px; color: var(--color-accent-dark); }

@media (max-width: 768px) {
  .featured-card { grid-template-columns: 1fr; }
  .featured-img { aspect-ratio: 16/9; }
  .featured-body { padding: 24px; }
}

/* =============================================
   POST GRID
============================================= */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.post-card {
  background: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}
.post-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }

.post-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, #1E293B, #334155);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.post-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.post-card:hover .post-card-img img { transform: scale(1.04); }

.post-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.post-card-body h3 { font-size: 1rem; margin-bottom: 8px; line-height: 1.4; }
.post-card-body h3 a { color: var(--color-primary); text-decoration: none; }
.post-card-body h3 a:hover { color: var(--color-accent); }
.post-card-body p { font-size: 0.88rem; color: var(--color-muted); margin-bottom: 0; flex: 1; }

.post-card-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--color-muted);
}
.reading-time { display: flex; align-items: center; gap: 4px; }

/* =============================================
   ADSENSE SLOTS
============================================= */
.ad-slot {
  background: var(--color-white);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 0.75rem;
  text-align: center;
  margin: 28px 0;
  min-height: 90px;
  position: relative;
}
.ad-slot::before {
  content: 'Publicidad';
  position: absolute;
  top: -10px;
  left: 16px;
  background: var(--color-white);
  padding: 0 8px;
  font-size: 0.7rem;
  color: var(--color-muted);
}
.ad-slot-banner { min-height: 90px; }
.ad-slot-rectangle { min-height: 250px; }
.ad-slot-leaderboard { min-height: 90px; }

/* =============================================
   SIDEBAR
============================================= */
.sidebar { position: sticky; top: 84px; display: flex; flex-direction: column; gap: 24px; }

.sidebar-widget {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

/* Newsletter widget */
.newsletter-widget { background: linear-gradient(135deg, #0F172A, #1E3A5F); color: white; }
.newsletter-widget .widget-title { color: #94A3B8; border-color: rgba(255,255,255,.1); }
.newsletter-widget h3 { color: white; font-size: 1.1rem; margin-bottom: 8px; }
.newsletter-widget p { color: #94A3B8; font-size: 0.85rem; margin-bottom: 16px; }
.newsletter-input { width: 100%; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.08); color: white; font-size: 0.88rem; margin-bottom: 10px; font-family: var(--font-sans); }
.newsletter-input::placeholder { color: #64748B; }
.newsletter-btn { width: 100%; padding: 10px; background: var(--color-accent); color: white; border: none; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.9rem; cursor: pointer; font-family: var(--font-sans); transition: background var(--transition); }
.newsletter-btn:hover { background: var(--color-accent-dark); }

/* Popular posts widget */
.popular-post { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--color-border); }
.popular-post:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: none; }
.popular-num { font-size: 1.5rem; font-weight: 800; color: var(--color-border); line-height: 1; flex-shrink: 0; min-width: 30px; }
.popular-post h4 { font-size: 0.85rem; line-height: 1.4; margin-bottom: 4px; }
.popular-post h4 a { color: var(--color-primary); text-decoration: none; }
.popular-post h4 a:hover { color: var(--color-accent); }
.popular-post span { font-size: 0.75rem; color: var(--color-muted); }

/* Tags widget */
.tags-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-link {
  background: var(--color-tag-bg);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: 99px;
  text-decoration: none;
  transition: all var(--transition);
}
.tag-link:hover { background: var(--color-accent-light); border-color: var(--color-accent); color: var(--color-accent); }

/* =============================================
   SINGLE ARTICLE
============================================= */
.article-header { margin-bottom: 32px; }
.article-header h1 { margin: 16px 0 12px; }
.article-hero-img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 32px;
}

.article-body { font-size: 1.05rem; line-height: 1.8; }
.article-body h2 { margin: 2rem 0 1rem; }
.article-body h3 { margin: 1.5rem 0 0.75rem; }
.article-body p { margin-bottom: 1.25rem; }
.article-body ul, .article-body ol { margin-bottom: 1.25rem; }
.article-body li { margin-bottom: 0.4rem; }
.article-body img { border-radius: var(--radius-sm); margin: 1.5rem 0; }
.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 16px 20px;
  margin: 1.5rem 0;
  background: var(--color-accent-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--color-muted);
}
.article-body code {
  background: #F1F5F9;
  padding: 2px 7px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
  color: #E11D48;
}
.article-body pre {
  background: #0F172A;
  color: #E2E8F0;
  padding: 20px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 1.5rem 0;
}
.article-body pre code { background: none; color: inherit; padding: 0; }

/* Product review box */
.review-box {
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 2rem 0;
  background: var(--color-accent-light);
}
.review-box .score { font-size: 2.5rem; font-weight: 800; color: var(--color-accent); }
.review-pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.pros li::before { content: '✓ '; color: var(--color-success); font-weight: 700; }
.cons li::before { content: '✗ '; color: #EF4444; font-weight: 700; }

/* Author box */
.author-box {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: 40px;
}
.author-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3B82F6, #1D4ED8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.8rem;
  font-weight: 800;
  flex-shrink: 0;
}
.author-info h4 { margin-bottom: 6px; }
.author-info p { font-size: 0.88rem; color: var(--color-muted); margin-bottom: 0; }

/* =============================================
   PAGINATION
============================================= */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 40px 0;
  flex-wrap: wrap;
}
.page-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  background: var(--color-white);
}
.page-btn:hover, .page-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

/* =============================================
   FOOTER
============================================= */
.site-footer {
  background: var(--color-primary);
  color: #94A3B8;
  margin-top: 80px;
}
.footer-top {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 20px 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand .site-logo { color: white; margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; line-height: 1.7; margin-bottom: 20px; }
.social-links { display: flex; gap: 10px; }
.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94A3B8;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all var(--transition);
}
.social-link:hover { background: var(--color-accent); color: white; }

.footer-col h4 { color: white; font-size: 0.9rem; margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: #94A3B8; font-size: 0.88rem; text-decoration: none; transition: color var(--transition); }
.footer-col ul li a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px;
  text-align: center;
  font-size: 0.82rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1/-1; }
  .main-nav { display: none; }
  .hamburger { display: block; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* =============================================
   UTILITIES
============================================= */
.badge-new { background: #ECFDF5; color: var(--color-success); font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; text-transform: uppercase; }
.badge-review { background: #FFF7ED; color: #EA580C; font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; text-transform: uppercase; }
.badge-guide { background: var(--color-accent-light); color: var(--color-accent); font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 99px; text-transform: uppercase; }

.stars { color: #FBBF24; letter-spacing: 2px; }

.load-more-btn {
  display: block;
  margin: 0 auto 40px;
  padding: 12px 32px;
  background: transparent;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition);
}
.load-more-btn:hover { background: var(--color-accent); color: white; }

.breadcrumb { font-size: 0.82rem; color: var(--color-muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--color-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { margin: 0 6px; }