/* ===== VARIABLES ===== */
:root {
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #00c9a7;
  --color-accent-hover: #00e6be;
  --color-accent-dark: #009b82;
  --color-gold: #f0c040;
  --color-gold-light: #fff8e1;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fa;
  --color-bg-dark: #1a1a2e;
  --color-text: #2c2c2c;
  --color-text-light: #6b6b6b;
  --color-text-muted: #999999;
  --color-border: #e4e8ec;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1200px;
  --max-width-article: 820px;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --transition: 0.3s ease;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-dark); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-hover); }
ul, ol { padding-left: 1.5em; }

/* ===== HEADER ===== */
.site-header {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-logo:hover { color: var(--color-accent); }
.site-logo .logo-icon {
  color: var(--color-accent);
  font-size: 1.3rem;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.5rem;
}
.main-nav {
  display: flex;
  gap: 0.25rem;
}
.main-nav a {
  color: rgba(255,255,255,0.85);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
}
.main-nav a:hover, .main-nav a[aria-current="page"] {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.main-nav a[aria-current="page"] {
  color: var(--color-accent);
}

/* ===== HERO HOMEPAGE ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #fff;
  padding: 4rem 1.5rem;
  text-align: center;
}
.hero-inner {
  max-width: 800px;
  margin: 0 auto;
}
.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.hero p {
  font-size: 1.15rem;
  opacity: 0.9;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.hero-cta {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 0.75rem 2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
}
.hero-cta:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== SECTIONS HOMEPAGE ===== */
.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  text-align: center;
  margin-bottom: 2.5rem;
  color: var(--color-primary);
}
.section-title i { color: var(--color-accent); margin-right: 0.5rem; }

.home-section {
  padding: 4rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}
.home-section-alt {
  background: var(--color-bg-alt);
  padding: 4rem 1.5rem;
}
.home-section-alt .home-section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ===== ARTICLES GRID (homepage + categories) ===== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.article-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}
.article-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}
.article-card-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-card-category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}
.article-card-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  line-height: 1.35;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}
.article-card-body p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  flex: 1;
  line-height: 1.5;
}
.article-card-meta {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 1rem;
}
.article-card-meta i { margin-right: 0.25rem; }

/* ===== ARTICLE HERO ===== */
.article-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #fff;
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
}
.article-hero-inner {
  max-width: var(--max-width-article);
  margin: 0 auto;
}
.breadcrumb {
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  opacity: 0.8;
}
.breadcrumb a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
}
.breadcrumb a:hover { color: #fff; }
.article-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  line-height: 1.25;
  margin-bottom: 1rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  font-size: 0.9rem;
  opacity: 0.85;
  margin-bottom: 1.25rem;
}
.article-meta i { margin-right: 0.3rem; }
.article-summary {
  font-size: 1.05rem;
  line-height: 1.6;
  opacity: 0.92;
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
  text-align: left;
  display: inline-block;
}
.article-summary strong { color: var(--color-accent); }

/* ===== ARTICLE CONTAINER ===== */
.article-container {
  max-width: var(--max-width-article);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3rem;
}

/* ===== TOC ===== */
.toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2.5rem;
}
.toc-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.toc-title i { color: var(--color-accent); margin-right: 0.5rem; }
.toc ol {
  list-style: none;
  padding: 0;
  counter-reset: toc;
}
.toc ol li {
  counter-increment: toc;
  padding: 0.3rem 0;
}
.toc ol li::before {
  content: counter(toc) ".";
  color: var(--color-accent);
  font-weight: 600;
  margin-right: 0.5rem;
}
.toc ol li a {
  color: var(--color-text);
  font-size: 0.95rem;
}
.toc ol li a:hover { color: var(--color-accent); }

/* ===== ARTICLE CONTENT ===== */
.article-content {
  font-size: 1.05rem;
  line-height: 1.8;
}
.article-content h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--color-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-border);
}
.article-content h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-primary);
  margin: 2rem 0 0.75rem;
}
.article-content p {
  margin-bottom: 1.25rem;
}
.article-content ul, .article-content ol {
  margin-bottom: 1.25rem;
}
.article-content li {
  margin-bottom: 0.4rem;
}
.article-content img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin: 1.5rem 0;
}
.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  padding: 1rem 1.5rem;
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--color-text-light);
}
.article-content strong { color: var(--color-primary); }
.article-content a { text-decoration: underline; text-underline-offset: 2px; }
.article-content a:hover { color: var(--color-accent); }

/* ===== FAQ ===== */
.faq-section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px solid var(--color-border);
}
.faq-section h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}
.faq-section h2 i { color: var(--color-accent); margin-right: 0.5rem; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  overflow: hidden;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg-alt);
  transition: all var(--transition);
}
.faq-question:hover { background: var(--color-border); }
.faq-question i {
  transition: transform var(--transition);
  color: var(--color-accent);
  font-size: 0.85rem;
}
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 1rem 1.25rem;
}
.faq-answer p { margin-bottom: 0.5rem; font-size: 0.95rem; line-height: 1.7; }

/* ===== RELATED ARTICLES ===== */
.related-articles {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 2px solid var(--color-border);
}
.related-articles h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.related-card {
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  color: inherit;
}
.related-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}
.related-card h4 {
  padding: 0.75rem;
  font-size: 0.9rem;
  line-height: 1.35;
  color: var(--color-primary);
}

/* ===== CATEGORY HERO ===== */
.category-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #fff;
  padding: 3rem 1.5rem;
  text-align: center;
}
.category-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: 0.75rem;
}
.category-hero h1 i { margin-right: 0.5rem; }
.category-hero p {
  font-size: 1.05rem;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto;
}
.category-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 3rem 1.5rem 0;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}
.footer-col h4 {
  font-family: var(--font-heading);
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 0.5rem;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
}
.footer-col p { font-size: 0.9rem; line-height: 1.6; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { padding: 0.3rem 0; }
.footer-col ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom {
  text-align: center;
  padding: 1.5rem 0;
  margin-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ===== MENTIONS LEGALES ===== */
.legal-page {
  max-width: var(--max-width-article);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}
.legal-page h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 2rem;
}
.legal-page h2 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin: 2rem 0 0.75rem;
}
.legal-page p { margin-bottom: 1rem; line-height: 1.7; }

/* ===== 404 PAGE ===== */
.page-404 {
  text-align: center;
  padding: 5rem 1.5rem;
}
.page-404 h1 {
  font-family: var(--font-heading);
  font-size: 5rem;
  color: var(--color-accent);
}
.page-404 p { font-size: 1.2rem; margin: 1rem 0 2rem; color: var(--color-text-light); }

/* ===== TABLES ===== */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-content table th,
.article-content table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.article-content table thead th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
}
.article-content table tbody tr:nth-child(even) {
  background: var(--color-bg-alt);
}
.article-content table tbody tr:hover {
  background: rgba(0, 201, 167, 0.05);
}
@media (max-width: 768px) {
  .article-content table {
    font-size: 0.85rem;
    display: block;
    overflow-x: auto;
  }
  .article-content table th,
  .article-content table td {
    padding: 0.5rem 0.75rem;
    white-space: nowrap;
  }
}

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

@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 1rem;
    box-shadow: var(--shadow-lg);
  }
  .main-nav.active { display: flex; }
  .main-nav a { padding: 0.75rem 1rem; }

  .hero { padding: 3rem 1.5rem; }
  .hero h1 { font-size: 1.8rem; }

  .article-hero h1 { font-size: 1.6rem; }
  .article-meta { gap: 0.75rem; font-size: 0.85rem; }

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

  .section-title { font-size: 1.5rem; }
}