/* 
  citaregistro.com - Premium Native CSS 
  Theme: Governmental Blue, Slate Gray, Bronze accents.
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --c-blue-gov: #1A365D;
  --c-blue-gov-light: #2B6CB0;
  --c-slate-dark: #2D3748;
  --c-slate-light: #718096;
  --c-bronze: #B7791F;
  --c-bronze-light: #D69E2E;
  --c-bg-light: #F7FAFC;
  --c-white: #FFFFFF;
  --c-border: #E2E8F0;
  
  /* Typography */
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  
  /* Spacing */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 1rem;
  --s-4: 1.5rem;
  --s-5: 2rem;
  --s-6: 3rem;
  --s-8: 4rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Transitions */
  --transition: all 0.2s ease-in-out;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--c-bg-light);
  color: var(--c-slate-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--s-3);
}

.grid {
  display: grid;
  gap: var(--s-4);
}

.grid-cols-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.layout-main-sidebar {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--s-5);
  align-items: start;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--s-2); }
.gap-3 { gap: var(--s-3); }

/* Typography */
h1, h2, h3, h4 {
  color: var(--c-blue-gov);
  line-height: 1.2;
  margin-bottom: var(--s-3);
  font-weight: 700;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
p { margin-bottom: var(--s-3); }

a {
  color: var(--c-blue-gov-light);
  text-decoration: none;
  transition: var(--transition);
}
a:hover { color: var(--c-bronze); }

/* Header & Nav */
.site-header {
  background-color: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.site-header .container {
  height: auto;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--c-blue-gov);
  cursor: pointer;
  padding: 0.5rem;
}
.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-blue-gov);
  display: flex;
  align-items: center;
  gap: var(--s-2);
}
.logo span { color: var(--c-bronze); }
.nav-links {
  display: flex;
  gap: var(--s-4);
  list-style: none;
  align-items: center;
}
.nav-links a {
  color: var(--c-slate-dark);
  font-weight: 500;
  text-decoration: none;
}
.nav-links a:hover { color: var(--c-blue-gov); }

/* Dropdown Menu */
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: var(--c-white);
  min-width: 220px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  z-index: 200;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 0;
}
.dropdown:hover .dropdown-content {
  display: block;
  animation: fadeIn 0.2s ease-in-out;
}
.dropdown-content li {
  width: 100%;
}
.dropdown-content a {
  color: var(--c-slate-dark);
  padding: 0.5rem 1rem;
  display: block;
  font-size: 0.95rem;
  transition: background-color 0.2s ease;
}
.dropdown-content a:hover {
  background-color: var(--c-bg-light);
  color: var(--c-blue-gov);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translate(-50%, -10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-blue-gov) 0%, var(--c-blue-gov-light) 100%);
  color: var(--c-white);
  box-shadow: 0 4px 6px -1px rgba(26, 54, 93, 0.2);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--c-blue-gov-light) 0%, var(--c-blue-gov) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 12px -2px rgba(26, 54, 93, 0.3);
  color: var(--c-white);
}
.btn-accent {
  background-color: var(--c-bronze);
  color: var(--c-white);
}
.btn-accent:hover {
  background-color: var(--c-bronze-light);
  color: var(--c-white);
}
.btn-outline {
  background-color: transparent;
  border: 2px solid var(--c-blue-gov);
  color: var(--c-blue-gov);
}
.btn-outline:hover {
  background-color: var(--c-blue-gov);
  color: var(--c-white);
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--c-blue-gov) 0%, #0d1e36 100%);
  color: var(--c-white);
  padding: var(--s-8) 0;
  text-align: center;
}
.hero h1 { color: var(--c-white); margin-bottom: var(--s-3); }
.hero p { font-size: 1.2rem; color: #e2e8f0; max-width: 600px; margin: 0 auto var(--s-4); }

/* Cards */
.card {
  background: var(--c-white);
  border-radius: 12px;
  padding: var(--s-4);
  box-shadow: 0 4px 15px -3px rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(226, 232, 240, 0.6);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card > .btn, .card > div:last-child {
  margin-top: auto !important;
}
.card:hover {
  box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
  border-color: var(--c-blue-gov-light);
}
.card-header {
  border-bottom: 1px solid var(--c-border);
  padding-bottom: var(--s-3);
  margin-bottom: var(--s-3);
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
  color: white;
  padding: 2rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.5);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--c-bg-light);
  color: var(--c-slate-light);
}

/* Footer */
.site-footer {
  background-color: var(--c-blue-gov);
  color: var(--c-white);
  padding: var(--s-6) 0 var(--s-3);
  margin-top: var(--s-8);
}
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: var(--c-white); }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--s-4);
  margin-bottom: var(--s-4);
}
.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--s-3);
  font-size: 0.875rem;
  color: #94a3b8;
}

/* Form inputs */
.form-group {
  margin-bottom: var(--s-3);
}
.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--s-1);
}
.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--c-border);
  border-radius: 4px;
  font-family: var(--font-main);
  font-size: 1rem;
}
.form-control:focus {
  outline: none;
  border-color: var(--c-blue-gov-light);
  box-shadow: 0 0 0 3px rgba(43, 108, 176, 0.2);
}

/* Utilities */
.text-center { text-align: center; }
.mt-4 { margin-top: var(--s-4); }
.mb-4 { margin-bottom: var(--s-4); }
.py-6 { padding-top: var(--s-6); padding-bottom: var(--s-6); }

/* Rating Stars */
.stars {
  color: var(--c-bronze-light);
  font-size: 1.25rem;
  letter-spacing: 2px;
}

/* Responsive */
@media (max-width: 768px) {
  body { background-color: var(--c-white); }
  .container { padding: 0 15px; }
  
  /* Aplanar contenedores para AdSense */
  .card { 
    border-radius: 0; 
    border: none; 
    border-bottom: 1px solid var(--c-border);
    box-shadow: none; 
    padding: var(--s-4) 0;
  }
  .card:last-child { border-bottom: none; }
  
  /* CTA Banner responsive */
  .cta-banner {
    flex-direction: column;
    text-align: center;
    border-radius: 8px;
    padding: 1.5rem 1rem;
    gap: 15px;
  }
  .cta-banner-text h2 {
    justify-content: center;
    font-size: 1.4rem !important;
  }
  
  .layout-main-sidebar { grid-template-columns: 1fr; gap: 1rem; }
  .site-header .container { flex-direction: column; padding: 0; align-items: stretch; }
  .header-top { width: 100%; padding: var(--s-3); }
  .mobile-menu-btn { display: block; }
  
  .main-nav { 
    display: none; 
    width: 100%; 
    background: var(--c-white); 
    border-top: 1px solid var(--c-border); 
    padding: var(--s-3) 0;
  }
  .main-nav.active { display: block; }
  
  .nav-links { 
    flex-direction: column; 
    align-items: center; 
    gap: var(--s-3); 
    width: 100%;
  }
  .nav-links li { width: 100%; text-align: center; }
  .nav-links a { display: inline-block; padding: 0.5rem 1rem; }
  
  .dropdown-content {
    position: static;
    display: block;
    box-shadow: none;
    border: none;
    transform: none;
    background: transparent;
    padding: 0;
    margin-top: 0.5rem;
  }
  .dropdown:hover .dropdown-content {
    animation: none;
  }
  .dropdown-content a {
    padding: 0.5rem 2rem;
    font-size: 0.9rem;
  }
  
  .hero { padding: var(--s-5) 0; }
  h1 { font-size: 2rem; }
}