@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@600;700&display=swap');

:root {
  --color-primary: #0B2545;     /* Azul Abisal de Laboratorio */
  --color-secondary: #136F63;   /* Cian Hidrológico */
  --color-accent: #FF6B35;      /* Ámbar Reactivo (Alto CTR) */
  --color-accent-hover: #e55a26;
  --color-bg: #F8FAFC;          /* Blanco Clínico */
  --color-surface: #FFFFFF;
  --color-text: #1E293B;        /* Gris Pizarra Oscuro */
  --color-muted: #64748B;
  --color-border: #E2E8F0;
  --color-warning-bg: #FEE2E2;
  --color-warning-border: #DC2626;
  --color-info-bg: #E0F2FE;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

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

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent);
}

/* HEADER Y NAVEGACIÓN SILO */
.site-header {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(11, 37, 69, 0.15);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-badge {
  background-color: var(--color-secondary);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.main-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.main-nav a {
  color: #E2E8F0;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
}

.main-nav a:hover, .main-nav a.active {
  color: var(--color-accent);
}

/* HERO DE DIAGNÓSTICO */
.hero-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, #133b6e 100%);
  color: #FFFFFF;
  padding: 3.5rem 0;
  text-align: center;
  border-bottom: 4px solid var(--color-secondary);
}

.hero-section h1 {
  color: #FFFFFF;
  font-size: 2.3rem;
  max-width: 850px;
  margin: 0 auto 1rem;
}

.hero-subtitle {
  color: #CBD5E1;
  max-width: 680px;
  margin: 0 auto 2rem;
  font-size: 1.05rem;
}

.search-box {
  max-width: 650px;
  margin: 0 auto;
  display: flex;
  gap: 0.5rem;
}

.search-box input {
  flex: 1;
  padding: 0.95rem 1.25rem;
  border-radius: 6px;
  border: 2px solid transparent;
  font-size: 1rem;
  font-family: var(--font-body);
  outline: none;
}

.search-box input:focus {
  border-color: var(--color-accent);
}

.btn-accent {
  background-color: var(--color-accent);
  color: #FFFFFF !important;
  font-weight: 600;
  padding: 0.9rem 1.5rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  display: inline-block;
  font-size: 1rem;
  transition: background 0.2s ease, transform 0.1s ease;
  text-align: center;
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* MATRIZ DE TRIAJE POR SÍNTOMAS */
.section-block {
  padding: 3rem 0;
}

.section-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
}

.triage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.triage-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-secondary);
  padding: 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.triage-card:hover {
  box-shadow: 0 8px 20px rgba(11, 37, 69, 0.08);
  transform: translateY(-3px);
}

.triage-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.triage-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* CALCULADORA TÉCNICA INTERACTIVA */
.calc-wrapper {
  background: var(--color-surface);
  border: 2px solid var(--color-secondary);
  border-radius: 10px;
  padding: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.calc-box h3 {
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.form-group input {
  width: 100%;
  padding: 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
}

.calc-result {
  margin-top: 1rem;
  padding: 1rem;
  background-color: var(--color-info-bg);
  border-left: 4px solid var(--color-secondary);
  font-size: 0.95rem;
  border-radius: 4px;
}

/* GRID DE LOS 15 ARTÍCULOS */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.silo-tag {
  display: inline-block;
  background-color: #E0F2FE;
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.article-pain {
  font-size: 0.92rem;
  color: var(--color-muted);
  margin-bottom: 1.25rem;
}

.article-meta-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border);
  padding-top: 0.85rem;
  font-size: 0.85rem;
}

/* BLOQUE DE AUTORIDAD E-E-A-T */
.eeat-box {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-radius: 10px;
  padding: 2.5rem;
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 2rem;
  align-items: center;
}

.eeat-avatar {
  background-color: var(--color-secondary);
  height: 160px;
  width: 160px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 700;
  border: 4px solid var(--color-accent);
  margin: 0 auto;
}

.eeat-content h2 {
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.eeat-credentials {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.eeat-content p {
  font-size: 0.95rem;
  color: #E2E8F0;
  margin-bottom: 1rem;
}

/* DISEÑO DEL ARTÍCULO (SINGLE POST 760PX SIN SIDEBAR) */
.single-post-container {
  max-width: 760px;
  margin: 2.5rem auto;
  padding: 2.25rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.author-byline {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
}

.verified-badge {
  background-color: #DCFCE7;
  color: #166534;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.78rem;
}

.direct-diagnosis {
  background-color: var(--color-info-bg);
  border-left: 5px solid var(--color-secondary);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  border-radius: 0 6px 6px 0;
}

.single-post-container p {
  margin-bottom: 1.25rem;
}

.single-post-container h2 {
  margin-top: 2.25rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--color-border);
}

.single-post-container h3 {
  margin-top: 1.5rem;
  color: var(--color-secondary);
}

.single-post-container ol, .single-post-container ul {
  margin: 0 0 1.5rem 1.5rem;
}

.single-post-container li {
  margin-bottom: 0.6rem;
}

/* BLOQUES DE ADSENSE Y AFILIACIÓN */
.adsense-slot {
  background-color: #F1F5F9;
  border: 1px dashed #CBD5E1;
  text-align: center;
  padding: 1.75rem 1rem;
  margin: 2rem 0;
  border-radius: 6px;
}

.adsense-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #94A3B8;
  margin-bottom: 0.5rem;
}

.toc-box {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
}

.toc-box summary {
  font-family: var(--font-heading);
  font-weight: 700;
  cursor: pointer;
  color: var(--color-primary);
}

.toc-box ul {
  margin: 0.75rem 0 0 1.25rem;
  font-size: 0.95rem;
}

.warning-callout {
  background-color: var(--color-warning-bg);
  border-left: 5px solid var(--color-warning-border);
  padding: 1.25rem;
  margin: 1.75rem 0;
  border-radius: 0 6px 6px 0;
  font-size: 0.95rem;
}

.affiliate-box {
  border: 2px solid var(--color-accent);
  background-color: #FFFDFB;
  border-radius: 8px;
  padding: 1.5rem;
  margin: 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.affiliate-info {
  flex: 1;
  min-width: 240px;
}

.affiliate-tag {
  background-color: var(--color-primary);
  color: #FFFFFF;
  font-size: 0.72rem;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  font-weight: 700;
}

.affiliate-info h4 {
  margin: 0.5rem 0 0.35rem;
  font-size: 1.15rem;
}

.affiliate-info p {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: 0 !important;
}

/* TABLAS TÉCNICAS CON SCROLL MÓVIL */
.table-responsive {
  overflow-x: auto;
  margin: 1.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background-color: var(--color-surface);
}

th {
  background-color: var(--color-primary);
  color: #FFFFFF;
  text-align: left;
  padding: 0.85rem;
  font-family: var(--font-heading);
}

td {
  padding: 0.85rem;
  border-bottom: 1px solid var(--color-border);
}

tr:nth-child(even) {
  background-color: #F8FAFC;
}

/* FOOTER Y MODALES LEGALES */
.site-footer {
  background-color: var(--color-primary);
  color: #CBD5E1;
  padding: 3rem 0 2rem;
  margin-top: 4rem;
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-links a {
  color: #FFFFFF;
  cursor: pointer;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 37, 69, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 1rem;
}

.modal-content {
  background: var(--color-surface);
  max-width: 700px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem;
  border-radius: 8px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--color-border);
  border: none;
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 700;
}

@media (max-width: 768px) {
  .eeat-box {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .single-post-container {
    margin: 1rem;
    padding: 1.25rem;
  }
  .search-box {
    flex-direction: column;
  }
}