/* Variables CSS */
:root {
  --primary-color: #16a34a;           /* Verde principal */
  --primary-light: #22c55e;           /* Verde claro */
  --primary-dark: #15803d;            /* Verde oscuro */
  --secondary-color: #059669;         /* Verde secundario */
  --secondary-light: #10b981;         /* Verde secundario claro */
  --secondary-dark: #047857;          /* Verde secundario oscuro */
  --accent-color: #f59e0b;            /* Mantenemos el acento naranja para contraste */
  --text-color: #1f2937;              /* Texto oscuro */
  --text-light: #6b7280;              /* Texto claro */
  --text-lighter: #9ca3af;            /* Texto más claro */
  --bg-color: #ffffff;                /* Fondo blanco */
  --bg-light: #f9fafb;                /* Fondo gris muy claro */
  --bg-lighter: #f3f4f6;              /* Fondo gris más claro */
  --bg-dark: #111827;                 /* Fondo oscuro para footer */
  --border-color: #e5e7eb;            /* Color de bordes */
  --border-light: #f3f4f6;            /* Borde claro */
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

/* Reset y estilos base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  overflow-x: hidden;
}

/* Utilidades */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.section-subtitle {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-color);
  background-color: rgba(29, 78, 216, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-light);
  line-height: 1.7;
}

.section-cta {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.bg-light {
  background-color: var(--bg-light);
}

.highlight {
  background: var(--primary-dark);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: var(--shadow);
  border: 2px solid var(--primary-dark);
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

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

.btn-outline:hover, .btn-outline:focus {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.logo-icon {
  font-size: 1.75rem;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.nav-link:hover, .nav-link:focus {
  color: var(--primary-color);
}

.nav-link:hover::after, .nav-link:focus::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--text-color);
  margin: 3px 0;
  transition: var(--transition);
  transform-origin: center;
}

/* Hero section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  margin-top: 0;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
  z-index: 1;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.hero-shape-1 {
  width: 300px;
  height: 300px;
  top: -150px;
  right: -100px;
}

.hero-shape-2 {
  width: 200px;
  height: 200px;
  bottom: 100px;
  left: -50px;
}

.hero-shape-3 {
  width: 150px;
  height: 150px;
  bottom: 200px;
  right: 200px;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 2rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Sección Beneficios */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.benefit-card {
  background-color: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-align: center;
  border: 1px solid var(--border-light);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.benefit-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.benefit-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.benefit-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* Sección Qué es Vitalink */
.about-container {
  display: block;
}

.about-content {
  max-width: 1000px;
  margin: 0 auto;
}

.about-text h3 {
  text-align: center;
}

.about-text p {
  margin-bottom: 2rem;
  color: var(--text-light);
  line-height: 1.7;
}

.focus-areas {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.focus-item {
  background-color: white;
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--primary-color);
}

.focus-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.focus-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
}

.focus-item h4 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.focus-item p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.focus-features {
  list-style: none;
}

.focus-features li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.focus-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--secondary-color);
  font-weight: bold;
}

.how-it-works {
  margin-top: 4rem;
}

.how-it-works h3 {
  font-size: 1.75rem;
  margin-bottom: 2rem;
  text-align: center;
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.step-content p {
  color: var(--text-light);
}

/* Filtros y búsqueda */
.filters-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding: 2rem;
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.search-box {
  position: relative;
  max-width: 500px;
}

.search-box input {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
}

.filters-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.category-filter select,
.sort-filter select {
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 1rem;
  background-color: white;
  min-width: 200px;
  cursor: pointer;
}

.category-filter select:focus,
.sort-filter select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

/* Grid de cápsulas */
.capsulas-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.capsula-card {
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.capsula-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.capsula-image {
  height: 180px;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: white;
}

.capsula-content {
  padding: 1.5rem;
}

.capsula-category {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-light);
  color: var(--text-light);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.capsula-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-color);
  line-height: 1.3;
}

.capsula-description {
  color: var(--text-light);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.capsula-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
}

.capsula-duration {
  color: var(--text-light);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-light);
  grid-column: 1 / -1;
  font-size: 1.125rem;
}

/* Testimonios */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.testimonial-card {
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--border-light);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.testimonial-rating {
  font-size: 1.25rem;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

/* ==== Testimonios: avatar consistente ==== */
.testimonial-avatar{
  width: 64px;               /* tamaño uniforme */
  height: 64px;
  border-radius: 9999px;     /* círculo */
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 2px solid rgba(0,0,0,.06);
  background: #f4f6f8;
  flex-shrink: 0;
  display: grid;
  place-items: center;
}

.testimonial-avatar img{
  width: 100%;
  height: 100%;
  object-fit: cover;         /* recorta sin deformar */
  display: block;
  image-rendering: -webkit-optimize-contrast;
}

/* Opcional: avatares un poco más grandes en pantallas grandes */
@media (min-width: 1024px){
  .testimonial-avatar{ width: 72px; height: 72px; }
}

.testimonial-content p {
  font-style: italic;
  margin-bottom: 2rem;
  color: var(--text-color);
  line-height: 1.7;
  font-size: 1.125rem;
}

.testimonial-author strong {
  display: block;
  color: var(--text-color);
  font-size: 1.125rem;
  margin-bottom: 0.25rem;
}

.testimonial-author span {
  color: var(--text-light);
  font-size: 0.875rem;
}

/* FAQ */
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 1.5rem 0;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--primary-color);
}

.faq-icon {
  transition: var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding-bottom: 1.5rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* Contacto */
.contact-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.contact-info p {
  margin-bottom: 2rem;
  color: var(--text-light);
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text-color);
}

.contact-item p {
  margin: 0;
  color: var(--text-light);
}

.contact-form {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.1);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text-light);
}

.checkbox input {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.checkbox input:checked + .checkmark {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.checkbox input:checked + .checkmark::after {
  content: '✓';
  color: white;
  font-size: 0.75rem;
  font-weight: bold;
}

.forgot-password {
  font-size: 0.875rem;
  color: var(--primary-color);
  text-decoration: none;
}

.forgot-password:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  background-color: var(--bg-dark);
  color: white;
  padding: 4rem 0 1.5rem;
}

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

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.footer-brand p {
  color: #d1d5db;
  line-height: 1.6;
  max-width: 400px;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: var(--transition);
}

.social-links a:hover {
  background-color: var(--primary-color);
  transform: translateY(-2px);
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.footer-column h4 {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
  color: white;
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 0.75rem;
}

.footer-column a {
  color: #d1d5db;
  text-decoration: none;
  transition: var(--transition);
}

.footer-column a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 1.5rem;
  text-align: center;
  color: #9ca3af;
  font-size: 0.875rem;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: white;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  padding: 2.5rem;
  position: relative;
  transform: translateY(-20px);
  transition: var(--transition);
  max-height: 90vh;
  overflow-y: auto;
}

.modal.active .modal-content {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--text-color);
  background-color: var(--bg-light);
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-header h2 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.auth-header p {
  color: var(--text-light);
}

/* Tabs de autenticación */
.auth-tabs {
  display: flex;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-light);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.tab-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
}

/* Panel de usuario */
.user-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 450px;
  height: 100%;
  background-color: white;
  box-shadow: var(--shadow-xl);
  z-index: 1500;
  overflow-y: auto;
  transform: translateX(100%);
  transition: var(--transition);
}

.user-panel.active {
  transform: translateX(0);
}

.panel-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-light);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.5rem;
  box-shadow: var(--shadow);
}

.user-details {
  flex: 1;
}

.user-details span {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.panel-content {
  padding: 2rem;
}

.admin-section {
  margin-bottom: 3rem;
}

.admin-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.admin-section h4 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-color);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.upload-form {
  background-color: var(--bg-light);
  padding: 2rem;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.files-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.user-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.user-stat {
  text-align: center;
  padding: 1.5rem 1rem;
  background-color: var(--bg-light);
  border-radius: var(--radius);
}

.user-stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.user-stat-label {
  font-size: 0.875rem;
  color: var(--text-light);
}

/* Toast/Notificaciones */
.toast-container {
  position: fixed;
  top: 100px;
  right: 1rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  color: white;
  animation: slideIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.toast::before {
  font-size: 1.25rem;
}

.toast.success {
  background-color: var(--secondary-color);
}

.toast.success::before {
  content: '✓';
}

.toast.error {
  background-color: #dc2626;
}

.toast.error::before {
  content: '✕';
}

.toast.info {
  background-color: var(--primary-color);
}

.toast.info::before {
  content: 'ℹ';
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@media (min-width: 768px) {
  .focus-areas {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Responsive */
@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
  
  .capsulas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .focus-areas {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .step {
    flex-direction: column;
    text-align: center;
  }
  
  .filters-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-content {
    grid-template-columns: 2fr 3fr;
  }
  
  .footer-links {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact-container {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .capsulas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .focus-areas {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .about-container {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

@media (max-width: 767px) {
  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: white;
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
  }
  
  .nav-menu.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }
  
  .stat {
    flex-direction: row;
    gap: 0.5rem;
    align-items: baseline;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero-actions .btn {
    text-align: center;
  }
}

/* Estilos para indicador de video */
.video-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--primary-color);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.capsula-image {
    position: relative;
}

/* Contenedor de video */
.video-container {
    width: 100%;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}

/* Botón de reproducir video */
.play-video-btn {
    cursor: pointer;
}

/* Estilos para miniaturas personalizadas */
.capsula-image.has-thumbnail {
    background: none;
    position: relative;
    overflow: hidden;
}

.capsula-thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.capsula-card:hover .capsula-thumbnail {
    transform: scale(1.05);
}

.capsula-icon {
    font-size: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

/* Texto de ayuda para formularios */
.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-light);
}

/* Previsualización de miniatura */
.thumbnail-preview {
    margin-top: 0.5rem;
    display: none;
}

.thumbnail-preview.active {
    display: block;
}

.thumbnail-preview img {
    max-width: 150px;
    max-height: 100px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Sección Alianzas - Versión con 5 fijos por línea */
.alianzas-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    align-items: center;
    justify-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.alianza-item {
  background: #fff;
  padding: 1.25rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: grid;              /* apila logo arriba y texto abajo */
  align-content: start;
  justify-items: center;
  gap: .55rem;
  height: 160px;              /* antes 100px */
  width: 100%;
}

.alianza-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.alianza-logo {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
    width: auto;
    height: auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.alianza-item:hover .alianza-logo {
    filter: grayscale(0%);
    opacity: 1;
}

/* Responsive para alianzas */
@media (min-width: 640px) {
    .alianzas-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) {
    .alianzas-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .alianzas-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .alianza-item {
        height: 140px;
        padding: 2rem;
    }
    
    .alianza-logo {
        max-width: 180px;
        max-height: 100px;
    }
}

@media (max-width: 480px) {
    .alianzas-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .alianza-item {
        height: 100px;
        padding: 1rem;
    }
    
    .alianza-logo {
        max-width: 120px;
        max-height: 60px;
    }
}

/* Carrusel de alianzas */
.alianzas-carousel {
  position: relative;
  margin-top: 2rem;
}

.carousel-track {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 0.5rem 0.25rem;
  -ms-overflow-style: none;  /* IE/Edge */
  scrollbar-width: none;     /* Firefox */
}
.carousel-track::-webkit-scrollbar { display: none; } /* Chrome */

.alianza-item {
  flex: 0 0 auto;
  width: clamp(180px, 22vw, 240px);
  scroll-snap-align: start;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 1.25rem;
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
}

.alianza-logo {
  max-width: 100%;
  max-height: 68px;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.9;
  transition: transform .2s ease, opacity .2s ease, filter .2s ease;
}
.alianza-item:hover .alianza-logo {
  filter: grayscale(0);
  opacity: 1;
  transform: scale(1.03);
}

/* Botones del carrusel */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255,255,255,.9);
  box-shadow: var(--shadow-md);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}
.carousel-btn:focus { outline: 3px solid rgba(21,128,61,.25); }
.carousel-btn.prev { left: -8px; }
.carousel-btn.next { right: -8px; }

@media (max-width: 640px) {
  .carousel-btn { display: none; } /* en móvil usamos swipe */
}

.alianza-caption{
  text-align:center;
  font-size:.92rem;
  color:#58606a; /* o var(--text-muted) */
  line-height:1.25;
  display:grid;
  gap:.15rem;
  min-height: 2.2em;
}

.alianza-caption strong{
  font-weight:600;
  color:#2a2f36; /* o var(--text) */
}

.alianza-caption span{
  font-size:.85rem;
  opacity:.9;
}

@media (min-width: 1024px) {
  .alianza-item { height: 180px; }
  .alianza-logo { max-height: 96px; }
}

.social-links {
  display: flex;
  gap: .75rem;
  align-items: center;
}
.social {
  display: inline-flex;
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  border-radius: 50%;
  background: #111; /* fondo base (modo oscuro) */
  color: #fff;
  text-decoration: none;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.social i { font-size: 18px; line-height: 1; }

/* Colores por marca al hover/focus */
.social.fb:hover, .social.fb:focus { background: #1877F2; box-shadow: 0 0 0 4px #1877f235; }
.social.ig:hover, .social.ig:focus { 
  background: radial-gradient(circle at 30% 110%, #feda75 0%, #d62976 50%, #962fbf 70%, #4f5bd5 100%);
  box-shadow: 0 0 0 4px #d6297635;
}
.social.tw:hover, .social.tw:focus { background: #000; box-shadow: 0 0 0 4px #00000035; }
.social.yt:hover, .social.yt:focus { background: #FF0000; box-shadow: 0 0 0 4px #ff000035; }

.social:active { transform: scale(0.96); }