/* GLOBAL RESET & VARIABLES */
:root {
  --black-matte: #0a0a0a;
  --black-shiny: #111111;
  --yellow-accent: #d4af37;
  --white: #ffffff;
  --light-gray: #cccccc;
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--black-matte);
  color: var(--white);
  line-height: 1.6;
}

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

a {
  text-decoration: none;
  color: var(--yellow-accent);
}

/* HEADER */
header {
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(10px);
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  height: 50px;
}

.header-text h1 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.header-text p {
  color: var(--light-gray);
  font-size: 0.9rem;
}

/* CONTAINER */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* ARTICLE GRID - LIST VIEW */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.card {
  background: var(--black-shiny);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 20px rgba(212, 175, 55, 0.2);
}

.card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.card-content {
  padding: 1.25rem;
}

.card-content h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--white);
}

.card-content p {
  color: var(--light-gray);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

.meta {
  font-size: 0.85rem;
  color: var(--yellow-accent);
}

/* SINGLE ARTICLE VIEW */
main h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  color: var(--white);
}

main h2 {
  font-size: 1.6rem;
  margin: 2.5rem 0 1.25rem;
  color: var(--white);
  border-left: 4px solid var(--yellow-accent);
  padding-left: 1rem;
}

main h3 {
  font-size: 1.3rem;
  margin: 2rem 0 1rem;
  color: var(--white);
}

main p, main ul, main ol {
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  color: var(--light-gray);
}

main ul, main ol {
  padding-left: 1.5rem;
}

main li {
  margin-bottom: 0.6rem;
}

/* BOXES */
.warning-box,
.info-box,
.success-box,
.tip-box,
.cta-box,
.final-checklist {
  position: relative;
  overflow: hidden;
  margin: 2rem 0;
}

.warning-box { border-left-color: #dc3545 !important; background: rgba(220, 53, 69, 0.1); }
.info-box { border-left-color: var(--yellow-accent) !important; background: rgba(212, 175, 55, 0.1); }
.success-box { border-left-color: #28a745 !important; background: rgba(40, 167, 69, 0.1); }
.tip-box { border-left-color: #ffc107 !important; background: rgba(255, 193, 7, 0.1); }

.final-checklist {
  background: rgba(40, 167, 69, 0.1);
  border: 2px solid #28a745;
  border-radius: 15px;
  padding: 25px;
}

/* CTA SECTION */
.cta-section {
  text-align: center;
  margin: 3rem 0;
  padding: 2.5rem;
  background: rgba(212, 175, 55, 0.05);
  border-radius: var(--border-radius);
  border: 1px solid rgba(212, 175, 55, 0.2);
}

.cta-section h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: var(--yellow-accent);
}

.cta-section p {
  color: var(--light-gray);
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.cta-button {
  display: inline-block;
  background: var(--yellow-accent);
  color: #000;
  font-weight: bold;
  padding: 12px 32px;
  border-radius: 50px;
  transition: var(--transition);
  font-size: 1.1rem;
}

.cta-button:hover {
  background: #bfa12e;
  transform: scale(1.05);
}

/* FOOTER (estilos cargados desde /css/footer.css) */
footer {
  margin-top: 4rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    text-align: center;
  }

  .header-text h1 {
    font-size: 1.3rem;
  }

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

  main h1 {
    font-size: 1.8rem;
  }

  main h2 {
    font-size: 1.4rem;
  }

  .card-img {
    height: 160px;
  }

  .cta-button {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .social-links-text {
    align-items: center;
  }
  
  .social-links-text a {
    font-size: 0.9rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 1rem;
  }

  .card-content h3 {
    font-size: 1.05rem;
  }

  .meta {
    font-size: 0.8rem;
  }
}