/* ==========================================================
   PediakidsEC - Estilos Principales
   Inspirado en la Asociación Española de Pediatría (AEP)
   Paleta: Azul Sanitario, Turquesa Clínico, Coral Agradable
   ========================================================== */

:root {
  /* Paleta Médica Primaria */
  --primary: #005f8d;          /* Azul AEP institucional */
  --primary-hover: #004b70;
  --secondary: #00a499;        /* Turquesa / Menta médico */
  --secondary-hover: #008980;
  
  /* Acentos Pediátricos */
  --accent-warm: #ff6f59;      /* Coral amigable para niños */
  --accent-light: #e6f7f6;     /* Fondo suave menta */
  --accent-warning: #e65100;
  
  /* Neutros & Superficie */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --border-color: #e2e8f0;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  /* Tipografías */
  --font-heading: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Sombras y Radios */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 28px rgba(0, 95, 141, 0.12);
  --transition: all 0.25s ease-in-out;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ==================== BOTONES ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.icon {
  width: 18px;
  height: 18px;
}

.icon-inline {
  width: 14px;
  height: 14px;
  vertical-align: middle;
}

.btn-portal-patient {
  background-color: var(--accent-light);
  color: var(--primary);
  border: 1.5px solid #bceae6;
}

.btn-portal-patient:hover {
  background-color: #d1f3f1;
  color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-portal-staff {
  background-color: #eff6ff;
  color: #1e40af;
  border: 1.5px solid #bfdbfe;
}

.btn-portal-staff:hover {
  background-color: #dbeafe;
  color: #1d4ed8;
  transform: translateY(-1px);
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  box-shadow: 0 4px 12px rgba(0, 95, 141, 0.25);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #fff;
}

.btn-block {
  width: 100%;
}

.btn-staff-primary {
  background-color: #0f172a;
  color: #ffffff;
}

.btn-staff-primary:hover {
  background-color: #334155;
}

/* ==================== HEADER & NAVEGACIÓN ==================== */
.site-header {
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top-wrapper {
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 0;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.brand-logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.logo-text-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.8rem;
  letter-spacing: -0.5px;
}

.logo-pediac {
  color: var(--primary);
}

.accent-kids {
  color: var(--accent-warm);
}

.country-badge {
  font-size: 0.75rem;
  background-color: var(--secondary);
  color: white;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 6px;
}

.mobile-toggle .bar {
  width: 24px;
  height: 2.5px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Barra inferior (Navbar estilo AEP) */
.main-navbar {
  background-color: #ffffff;
  border-bottom: 2px solid #f1f5f9;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-item {
  display: block;
  padding: 0.95rem 0.25rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
}

.nav-item:hover,
.nav-item.active {
  color: var(--primary);
  border-bottom-color: var(--secondary);
}

/* Buscador Rápido */
.nav-search {
  display: flex;
  align-items: center;
  background-color: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.65rem 0.25rem 1rem;
}

.nav-search input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.85rem;
  width: 180px;
  color: var(--text-main);
}

.search-btn {
  border: none;
  background: none;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
}

.search-btn:hover {
  color: var(--primary);
}

/* ==================== HERO SECTION ==================== */
.hero-section {
  padding: 4rem 0 3.5rem;
  background: linear-gradient(180deg, #ffffff 0%, #f0fdfa 100%);
  border-bottom: 1px solid #e2e8f0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
}

.badge-tag {
  display: inline-block;
  background-color: #e0f2fe;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  line-height: 1.2;
  color: #0f172a;
  margin-bottom: 1.2rem;
  font-weight: 800;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.hero-card-summary {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quick-card {
  background: #ffffff;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: var(--transition);
}

.quick-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--secondary);
}

.quick-icon {
  font-size: 1.6rem;
  background-color: var(--accent-light);
  padding: 8px 12px;
  border-radius: var(--radius-md);
}

.quick-card h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.quick-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* ==================== SECCIÓN DE ARTÍCULOS ==================== */
.blog-section {
  padding: 4.5rem 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: #0f172a;
  font-weight: 800;
}

.section-subtitle {
  color: var(--text-muted);
  max-width: 600px;
  margin-top: 0.35rem;
}

.category-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: #fff;
  border: 1px solid var(--border-color);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.article-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-badge {
  padding: 0.4rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.article-badge.warning { background: #ffedd5; color: var(--accent-warning); }
.article-badge.primary { background: #e0f2fe; color: var(--primary); }
.article-badge.success { background: #dcfce7; color: #15803d; }

.article-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-date {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.article-body h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: #0f172a;
  margin-bottom: 0.75rem;
  line-height: 1.35;
}

.article-body p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.read-more {
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
}

.read-more:hover {
  color: var(--secondary);
}

/* ==================== QUIÉNES SOMOS ==================== */
.about-section {
  background-color: #ffffff;
  padding: 4.5rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.about-text h2 {
  font-family: var(--font-heading);
  font-size: 2.1rem;
  margin-bottom: 1.2rem;
  color: #0f172a;
}

.about-list {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.about-list li {
  position: relative;
  padding-left: 1.8rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.about-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--secondary);
  font-weight: bold;
}

.about-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

.stat-card {
  background: var(--bg-page);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--secondary);
}

.stat-card h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--primary);
}

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

/* ==================== CTA BANNER ==================== */
.cta-banner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 3.5rem 0;
}

.cta-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

.cta-text h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.cta-text p {
  opacity: 0.9;
  font-size: 1.05rem;
}

.btn-light {
  background: white;
  color: var(--primary);
}

.btn-light:hover {
  background: #f8fafc;
  transform: translateY(-2px);
}

/* ==================== MODALES ==================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-overlay.open {
  display: flex;
  animation: fadeIn 0.2s ease-out;
}

.modal-box {
  background: #ffffff;
  width: 100%;
  max-width: 440px;
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  position: relative;
  animation: slideUp 0.25s ease-out;
}

.modal-box.staff-style {
  border-top: 5px solid #0f172a;
}

.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: none;
  border: none;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--text-light);
  cursor: pointer;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-header {
  text-align: center;
  margin-bottom: 1.8rem;
}

.modal-icon-badge {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.modal-header h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: #0f172a;
}

.modal-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(0, 164, 153, 0.15);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

.modal-footer-text {
  text-align: center;
  font-size: 0.85rem;
  margin-top: 1.5rem;
  color: var(--text-muted);
}

.modal-footer-text.secure {
  font-size: 0.75rem;
  color: #64748b;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
}

/* ==================== FOOTER ==================== */
.site-footer {
  background-color: #0b192c;
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-logo .logo-pediac { color: #ffffff; }
.footer-desc {
  font-size: 0.9rem;
  margin-top: 1rem;
  line-height: 1.6;
}

.footer-col h4 {
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin-bottom: 1.2rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col ul a:hover {
  color: var(--secondary);
}

.badge-status {
  display: inline-block;
  color: #4ade80;
  font-size: 0.8rem;
  margin-top: 0.8rem;
}

.footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 2rem;
  font-size: 0.85rem;
}

.bottom-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.disclaimer {
  max-width: 600px;
  font-size: 0.78rem;
  color: #64748b;
}

/* Animaciones */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(15px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid,
  .about-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-actions .btn span {
    display: none;
  }
  .header-actions .btn {
    padding: 0.6rem;
  }
  .mobile-toggle {
    display: flex;
  }
  .main-navbar {
    display: none;
  }
  .main-navbar.mobile-active {
    display: block;
  }
  .nav-container {
    flex-direction: column;
    padding: 1rem 0;
    gap: 1rem;
  }
  .nav-links {
    flex-direction: column;
    width: 100%;
    text-align: center;
    gap: 0.2rem;
  }
  .nav-search {
    width: 100%;
  }
  .nav-search input {
    width: 100%;
  }
}