/* ==========================================================================
   Laboratorio Clínico San Francisco - Design System & Modern CSS (2026)
   ========================================================================== */

/* 1. Variables & Design Tokens */
:root {
  /* Color Palette */
  --primary-900: #002B5C;
  --primary-800: #003A7B;
  --primary-700: #004B9E;
  --accent-cyan: #00A8CC;
  --accent-cyan-light: #E0F7FA;
  --accent-green: #25D366; /* WhatsApp */
  --accent-green-hover: #1EBE57;
  
  /* Neutral Colors */
  --neutral-900: #0F172A;
  --neutral-800: #1E293B;
  --neutral-700: #334155;
  --neutral-600: #475569;
  --neutral-400: #94A3B8;
  --neutral-200: #E2E8F0;
  --neutral-100: #F1F5F9;
  --neutral-50:  #F8FAFC;
  --white:        #FFFFFF;

  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Elevación & Sombras */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  color: var(--neutral-800);
  background-color: var(--neutral-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button, input, textarea {
  font-family: inherit;
}

/* 3. TopBar & Header */
.top-bar {
  background-color: var(--primary-900);
  color: var(--white);
  padding: 8px 0;
  font-size: 0.875rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.top-bar-contact {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  font-size: 0.85rem;
  transition: var(--transition-fast);
}

.top-bar-item i {
  font-size: 0.95rem;
  flex-shrink: 0;
}

.top-bar-item:hover {
  color: var(--accent-cyan);
}

.top-bar-social {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.top-bar-social-link {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.top-bar-social-link:hover {
  background-color: var(--accent-cyan);
  color: var(--primary-900);
  transform: translateY(-2px);
}

.main-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.logo img {
  height: 54px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-fast);
}

.logo:hover img {
  transform: scale(1.02);
}

/* Versión Híbrida HTML+CSS (Opción Alternativa vectorizada) */
.logo-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text-top {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-900);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.logo-text-bottom {
  font-size: 1.25rem;
  font-weight: 900;
  color: var(--primary-700);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.nav-link {
  font-weight: 500;
  color: var(--neutral-700);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-800);
  background-color: var(--neutral-100);
}

.btn-primary-sm {
  background-color: var(--primary-800);
  color: var(--white);
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary-sm:hover {
  background-color: var(--primary-900);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 4. Hero Section */
.hero-section {
  position: relative;
  background: 
    linear-gradient(135deg, rgba(0, 43, 92, 0.94) 0%, rgba(0, 58, 123, 0.88) 100%),
    url('../images/bg-image/banner_2.jpg') no-repeat center right / cover;
  color: var(--white);
  padding: 95px 20px 125px 20px;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: radial-gradient(circle at 10% 20%, rgba(0, 168, 204, 0.15) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(37, 211, 102, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 20px;
  backdrop-filter: blur(5px);
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-title span {
  color: var(--accent-cyan);
}

.hero-description {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 35px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-hero-primary {
  background-color: var(--accent-cyan);
  color: var(--neutral-900);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition-normal);
  box-shadow: 0 4px 14px rgba(0, 168, 204, 0.4);
}

.btn-hero-primary:hover {
  background-color: #00C4ED;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 168, 204, 0.6);
}

.btn-hero-secondary {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  backdrop-filter: blur(5px);
  transition: var(--transition-normal);
}

.btn-hero-secondary:hover {
  background-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.hero-card-preview {
  position: relative;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-xl);
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.stat-box {
  background-color: rgba(0, 43, 92, 0.4);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

/* 5. Quick Access Section */
.quick-access-section {
  margin-top: -60px;
  position: relative;
  z-index: 10;
  padding: 0 20px 60px 20px;
}

.quick-access-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.access-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--neutral-200);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.access-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-700);
}

.access-icon {
  width: 56px;
  height: 56px;
  background-color: var(--accent-cyan-light);
  color: var(--primary-800);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.access-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 10px;
}

.access-desc {
  color: var(--neutral-600);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.access-link {
  color: var(--primary-800);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.access-card:hover .access-link {
  color: var(--accent-cyan);
}

/* 6. Section Titles */
.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 50px auto;
}

.section-subtitle {
  color: var(--accent-cyan);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--neutral-900);
  line-height: 1.25;
}

/* 7. Value Props & Features */
.features-section {
  padding: 80px 20px;
  background-color: var(--white);
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-box {
  background-color: var(--neutral-50);
  border-radius: var(--radius-md);
  padding: 30px;
  border: 1px solid var(--neutral-200);
  transition: var(--transition-fast);
}

.feature-box:hover {
  background-color: var(--white);
  box-shadow: var(--shadow-md);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 15px 0 10px 0;
  color: var(--neutral-900);
}

.feature-desc {
  font-size: 0.925rem;
  color: var(--neutral-600);
}

/* 8. Process Section */
.process-section {
  padding: 80px 20px;
  background-color: var(--neutral-100);
}

.process-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.process-step {
  position: relative;
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--neutral-200);
}

.step-number {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--neutral-200);
  line-height: 1;
}

/* 9. Floating WhatsApp */
.floating-whatsapp {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background-color: var(--accent-green);
  color: var(--white);
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: var(--shadow-xl);
  z-index: 999;
  transition: var(--transition-normal);
}

.floating-whatsapp:hover {
  background-color: var(--accent-green-hover);
  transform: scale(1.1);
}

/* 10. Footer */
.footer {
  background-color: var(--neutral-900);
  color: var(--neutral-400);
  padding: 60px 20px 30px 20px;
  font-size: 0.9rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col-title {
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 25px;
  border-top: 1px solid var(--neutral-800);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

/* 11. Inner Pages Header Banner */
.page-title-banner {
  background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 100%);
  color: var(--white);
  padding: 60px 20px;
  position: relative;
  overflow: hidden;
}

.page-title-banner::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  background: radial-gradient(circle, rgba(0, 168, 204, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.page-title-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.page-title-heading h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.breadcrumb a {
  color: var(--accent-cyan);
  transition: var(--transition-fast);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* 12. Timeline Styles */
.timeline {
  position: relative;
  max-width: 1000px;
  margin: 40px auto 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.timeline-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 25px;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: var(--transition-normal);
}

.timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-700);
}

.timeline-year {
  display: inline-block;
  background-color: var(--accent-cyan-light);
  color: var(--primary-800);
  font-weight: 800;
  font-size: 1rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

/* 13. Mission / Vision Cards */
.mission-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.mission-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: 35px 28px;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.mission-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-cyan);
}

/* 14. Contact Form & Cards */
.contact-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.8fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: 35px;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 25px;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-icon {
  width: 48px;
  height: 48px;
  background-color: var(--accent-cyan-light);
  color: var(--primary-800);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: 4px;
}

.contact-details p, .contact-details a {
  color: var(--neutral-600);
  font-size: 0.95rem;
}

.contact-details a:hover {
  color: var(--accent-cyan);
}

.contact-form-container {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-md);
}

.form-group-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--neutral-800);
}

.form-input, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--neutral-200);
  background-color: var(--neutral-50);
  font-size: 0.95rem;
  color: var(--neutral-900);
  transition: var(--transition-fast);
  outline: none;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--primary-700);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(0, 75, 158, 0.15);
}

.btn-submit {
  background-color: var(--primary-800);
  color: var(--white);
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* Custom Modern File Upload */
.file-upload-container {
  position: relative;
  width: 100%;
}

.file-upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 22px 16px;
  border: 2px dashed var(--neutral-300);
  border-radius: var(--radius-md);
  background-color: var(--neutral-50);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-align: center;
}

.file-upload-dropzone:hover,
.file-upload-container:focus-within .file-upload-dropzone {
  border-color: var(--primary-700);
  background-color: rgba(0, 75, 158, 0.04);
}

.file-upload-icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: rgba(0, 75, 158, 0.08);
  color: var(--primary-800);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 8px;
  transition: transform 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.file-upload-dropzone:hover .file-upload-icon {
  transform: translateY(-2px);
  background-color: var(--primary-800);
  color: var(--white);
}

.file-upload-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--neutral-800);
  margin-bottom: 3px;
}

.file-upload-subtitle {
  font-size: 0.78rem;
  color: var(--neutral-600);
}

.file-upload-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.file-selected-badge {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background-color: #ECFDF5;
  border: 1px solid #10B981;
  color: #065F46;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: 10px;
}

.btn-submit:hover {
  background-color: var(--primary-900);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   16. Promotions Grid & Lightbox Modal
   ========================================================================== */
.promo-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 30px;
}

.promo-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

.promo-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-700);
}

.promo-image-wrapper {
  position: relative;
  width: 100%;
  height: 280px;
  background-color: var(--neutral-100);
  overflow: hidden;
  cursor: pointer;
}

.promo-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}

.promo-card:hover .promo-image-wrapper img {
  transform: scale(1.04);
}

.promo-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--primary-900);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  z-index: 2;
}

.promo-zoom-hint {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background-color: rgba(15, 23, 42, 0.75);
  color: var(--white);
  font-size: 0.8rem;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
  opacity: 0;
  transform: translateY(6px);
  transition: var(--transition-fast);
  pointer-events: none;
}

.promo-image-wrapper:hover .promo-zoom-hint {
  opacity: 1;
  transform: translateY(0);
}

.promo-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.promo-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary-900);
  margin-bottom: 10px;
  line-height: 1.35;
}

.promo-desc {
  font-size: 0.95rem;
  color: var(--neutral-700);
  margin-bottom: 20px;
  flex: 1;
  line-height: 1.5;
}

.promo-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.btn-promo-zoom {
  flex: 1;
  background-color: var(--neutral-100);
  color: var(--primary-900);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--neutral-200);
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-promo-zoom:hover {
  background-color: var(--primary-900);
  color: var(--white);
  border-color: var(--primary-900);
}

.btn-promo-wa {
  flex: 1;
  background-color: var(--accent-green);
  color: var(--white);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

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

/* Lightbox Modal */
.promo-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.promo-modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.promo-modal-content {
  position: relative;
  max-width: 900px;
  max-height: 90vh;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
}

.promo-modal-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  background-color: var(--neutral-900);
}

.promo-modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.6);
  color: var(--white);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 10;
}

.promo-modal-close:hover {
  background-color: var(--primary-900);
  transform: scale(1.1);
}

.promo-modal-footer {
  padding: 20px;
  background-color: var(--white);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .promo-grid, .branch-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   17. Branch Cards System (.branch-grid, .branch-card)
   ========================================================================== */
.branch-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 30px;
}

.branch-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
}

.branch-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-700);
}

.branch-image-wrapper {
  position: relative;
  width: 100%;
  height: 220px;
  background-color: var(--neutral-100);
  overflow: hidden;
}

.branch-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.branch-card:hover .branch-image-wrapper img {
  transform: scale(1.05);
}

.branch-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background-color: var(--primary-900);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
}

.branch-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.branch-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary-900);
  margin-bottom: 16px;
  line-height: 1.3;
}

.branch-info-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  flex: 1;
}

.branch-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.925rem;
  color: var(--neutral-700);
}

.branch-info-item i {
  color: var(--primary-700);
  font-size: 1rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.branch-info-item strong {
  color: var(--neutral-900);
}

.branch-schedule-tag {
  background-color: var(--accent-cyan-light);
  color: var(--primary-900);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 6px;
}

.branch-schedule-tag i {
  color: var(--primary-800);
  margin-top: 2px;
}

.branch-actions {
  display: flex;
  gap: 10px;
  margin-top: auto;
}

.btn-branch-maps {
  width: 100%;
  background-color: var(--primary-900);
  color: var(--white);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  border: none;
  text-decoration: none;
  text-align: center;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-branch-maps:hover {
  background-color: var(--primary-800);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-branch-wa {
  flex: 1;
  background-color: var(--accent-green);
  color: var(--white);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: none;
  text-decoration: none;
  text-align: center;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

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

@media (max-width: 992px) {
  .contact-grid, .form-group-row, .portal-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   18. Results Portal Hub (.portal-grid, .portal-card)
   ========================================================================== */
.portal-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.portal-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
  position: relative;
}

.portal-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-700);
}

.portal-card-header {
  padding: 30px 24px 20px 24px;
  background: linear-gradient(180deg, var(--neutral-50) 0%, var(--white) 100%);
  text-align: center;
  position: relative;
}

.portal-card-img {
  height: 170px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  margin: 0 auto;
  transition: transform 0.3s ease;
}

.portal-card:hover .portal-card-img {
  transform: scale(1.05);
}

.portal-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.portal-badge {
  display: inline-block;
  background-color: var(--accent-cyan-light);
  color: var(--primary-800);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
  align-self: flex-start;
}

.portal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-900);
  margin-bottom: 10px;
}

.portal-desc {
  font-size: 0.95rem;
  color: var(--neutral-600);
  margin-bottom: 20px;
  line-height: 1.5;
}

.portal-features-list {
  list-style: none;
  padding: 0;
  margin: 0 0 25px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.portal-features-list li {
  font-size: 0.9rem;
  color: var(--neutral-700);
  display: flex;
  align-items: center;
  gap: 10px;
}

.portal-features-list li i {
  color: var(--accent-cyan);
  font-size: 0.85rem;
}

.btn-portal-primary {
  width: 100%;
  background-color: var(--primary-800);
  color: var(--white);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 20px;
  border-radius: var(--radius-full);
  border: none;
  text-decoration: none;
  text-align: center;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: auto;
}

.btn-portal-primary:hover {
  background-color: var(--primary-900);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   15. Mobile Navigation Menu Drawer & Responsive System
   ========================================================================== */

/* Mobile Hamburger Toggle Button */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--primary-900);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.mobile-nav-toggle:hover {
  background-color: var(--neutral-100);
}

/* Mobile Drawer Overlay / Backdrop */
.mobile-nav-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.mobile-nav-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* Mobile Nav Drawer Container */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -340px;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background-color: var(--white);
  z-index: 2000;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
}

.mobile-nav-drawer.active {
  transform: translateX(-340px);
}

/* Drawer Header */
.drawer-header {
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--neutral-200);
}

.drawer-header .logo img {
  height: 42px;
}

.drawer-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--neutral-700);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.drawer-close-btn:hover {
  background-color: var(--neutral-100);
  color: var(--primary-900);
}

/* Drawer Body Links */
.drawer-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drawer-link {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--neutral-800);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  text-decoration: none;
}

.drawer-link:hover, .drawer-link.active {
  background-color: var(--neutral-100);
  color: var(--primary-800);
}

.drawer-footer {
  padding: 20px;
  border-top: 1px solid var(--neutral-200);
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-color: var(--neutral-50);
}

/* Media Query Rules for Screen Widths <= 992px */
@media (max-width: 992px) {
  .nav-menu, .header-container > .btn-primary-sm {
    display: none; /* Hidden on mobile/tablet, replaced by hamburger drawer */
  }

  .mobile-nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .top-bar-container {
    justify-content: center;
    padding: 0 10px;
  }

  .top-bar-contact {
    font-size: 0.78rem;
    gap: 6px 14px;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }

  .top-bar-item {
    font-size: 0.78rem;
    white-space: nowrap;
  }

  @media (max-width: 480px) {
    .top-bar-email {
      display: none; /* Hide long email address on narrow mobile screens */
    }
  }

  .top-bar-social {
    display: none;
  }

  .header-container {
    padding: 12px 15px;
  }

  .logo img {
    height: 44px;
  }

  .hero-section {
    padding: 60px 15px 90px 15px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 35px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.1rem;
  }

  .hero-description {
    font-size: 0.975rem;
    margin: 0 auto 25px auto;
  }

  .hero-actions {
    justify-content: center;
    flex-direction: column;
    gap: 12px;
  }

  .btn-hero-primary, .btn-hero-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .hero-stats-grid {
    grid-template-columns: 1fr;
  }

  .hero-card-preview {
    margin-top: 10px;
    padding: 20px;
  }

  .quick-access-container {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .quick-access-section {
    margin-top: -35px;
    padding: 0 15px 40px 15px;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .features-grid, .process-grid, .footer-container, .contact-grid, .timeline, .mission-grid, .portal-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features-section, .process-section {
    padding: 50px 15px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
}

/* Adaptación Compacta & Resumida para Portales en Móvil */
@media (max-width: 768px) {
  .portal-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }

  .portal-card {
    box-shadow: var(--shadow-sm);
  }

  .portal-card-header {
    padding: 18px 15px 8px 15px;
  }

  .portal-card-img {
    height: 100px;
  }

  .portal-card-body {
    padding: 16px;
  }

  .portal-title {
    font-size: 1.18rem;
    margin-bottom: 6px;
  }

  .portal-desc {
    font-size: 0.875rem;
    margin-bottom: 14px;
    line-height: 1.4;
  }

  /* Ocultar lista detallada de checks en móvil para vista resumida */
  .portal-features-list {
    display: none;
  }

  .btn-portal-primary {
    padding: 12px 16px;
    font-size: 0.9rem;
  }
}

/* ==========================================================================
   19. Welcome Popup Promo Modal (Homepage First Visit)
   ========================================================================== */
.welcome-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(5px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.welcome-modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.welcome-modal-card {
  position: relative;
  max-width: 500px;
  width: 100%;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.welcome-modal-backdrop.active .welcome-modal-card {
  transform: scale(1);
}

.welcome-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: rgba(0, 0, 0, 0.65);
  color: var(--white);
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 20;
}

.welcome-modal-close:hover {
  background-color: var(--primary-900);
  transform: scale(1.1);
}

.welcome-modal-img-wrapper {
  width: 100%;
  max-height: 70vh;
  overflow: hidden;
  background-color: #0d1b2a;
}

.welcome-modal-img {
  width: 100%;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  display: block;
}

.welcome-modal-body {
  padding: 16px 20px;
  text-align: center;
  background-color: var(--white);
}

.welcome-modal-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-900);
  margin-bottom: 2px;
}

/* ==========================================================================
   20. QR Validator Styles (Responsive Layout)
   ========================================================================== */
.qr-validator-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  align-items: stretch;
}

.qr-validator-info {
  background: linear-gradient(135deg, var(--primary-900) 0%, var(--primary-800) 100%);
  padding: 40px 30px;
  text-align: center;
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.qr-validator-form-container {
  padding: 40px 35px;
}

@media (max-width: 768px) {
  .qr-validator-card {
    grid-template-columns: 1fr;
  }
  .qr-validator-info {
    padding: 30px 20px;
  }
  .qr-validator-form-container {
    padding: 30px 20px;
  }
}

.f-group-preference {
  display: none !important;
  visibility: hidden;
  position: absolute;
  width: 0;
  height: 0;
}

.alert-success-box {
  background-color: #ECFDF5;
  border: 1px solid #A7F3D0;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
  animation: fadeInAlert 0.3s ease;
}

.alert-error-box {
  background-color: #FEF2F2;
  border: 1px solid #FCA5A5;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 24px;
  animation: fadeInAlert 0.3s ease;
}

@keyframes fadeInAlert {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}