/* Estilos principales de la aplicación */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --error-color: #ef4444;
  --bg-color: #f8fafc;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --text-color: #1e293b;
  --text-light: #64748b;
  --border-color: #e2e8f0;
  --card-bg: #ffffff;
  --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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--bg-color);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.05) 0px, transparent 50%);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  margin-bottom: 3rem;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
}

nav {
  padding: 1.25rem 0;
}

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

nav h1 {
  font-size: 1.75rem;
  font-weight: 700;
  background: var(--bg-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

/* Menú hamburguesa */
.menu-toggle {
  display: none;
  flex-direction: column;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 0.375rem;
  z-index: 1001;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  justify-content: center;
  align-items: center;
  transition: transform 0.3s ease;
}

.menu-toggle:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  border-radius: 4px;
}

.hamburger-line {
  width: 1.75rem;
  height: 3px;
  background: var(--text-color);
  border-radius: 3px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(0.5rem) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-0.5rem) rotate(-45deg);
}

.menu-toggle:hover .hamburger-line {
  background: var(--primary-color);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  align-items: center;
  margin: 0;
  padding: 0;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: color 0.3s ease;
  padding: 0.5rem 0;
  display: block;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--bg-gradient);
  transition: width 0.3s ease;
}

nav a:hover {
  color: var(--primary-color);
}

nav a:hover::after {
  width: 100%;
}

/* Main content */
main {
  min-height: calc(100vh - 200px);
  padding-bottom: 2rem;
}

/* Hero section */
.hero {
  text-align: center;
  padding: 4rem 0 5rem;
  animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: var(--bg-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.35rem;
  color: var(--text-light);
  margin-bottom: 4rem;
  font-weight: 400;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.feature-card {
  background: var(--card-bg);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.6s ease-out;
  animation-fill-mode: both;
}

.feature-card:nth-child(1) {
  animation-delay: 0.1s;
}

.feature-card:nth-child(2) {
  animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
  animation-delay: 0.3s;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--bg-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-light);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.7;
}

/* Alerts */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  border-left: 4px solid;
  animation: slideInRight 0.4s ease-out;
  box-shadow: var(--shadow-sm);
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.alert-success {
  background-color: #d1fae5;
  color: #065f46;
  border-color: var(--success-color);
}

.alert-error {
  background-color: #fee2e2;
  color: #991b1b;
  border-color: var(--error-color);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  background: var(--bg-gradient);
  color: #fff;
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: translateY(0);
}

/* Error page */
.error-page {
  text-align: center;
  padding: 6rem 0;
  animation: fadeInUp 0.8s ease-out;
}

.error-page h1 {
  font-size: 8rem;
  font-weight: 800;
  background: var(--bg-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1;
  letter-spacing: -2px;
}

.error-page h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.error-page p {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
footer {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  padding: 2.5rem 0;
  margin-top: 5rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-light);
  font-size: 0.95rem;
}

/* Page content */
.page-content {
  background: var(--card-bg);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  animation: fadeInUp 0.6s ease-out;
}

.page-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--bg-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  letter-spacing: -0.5px;
}

.page-content h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border-color);
}

.page-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-color);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.page-content p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.page-content ul {
  margin-left: 2rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.page-content li {
  margin-bottom: 0.75rem;
  color: var(--text-light);
  line-height: 1.7;
  position: relative;
  padding-left: 0.5rem;
}

.page-content li::marker {
  color: var(--primary-color);
}

.content-section {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

/* Forms */
.contact-form {
  max-width: 600px;
  margin-top: 2rem;
  animation: fadeInUp 0.6s ease-out;
}

.form-group {
  margin-bottom: 2rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: var(--text-color);
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  background: var(--card-bg);
  color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
  transform: translateY(-2px);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

/* Contador de caracteres */
.character-count-wrapper {
  margin-top: 0.5rem;
  text-align: right;
}

.character-count {
  font-size: 0.875rem;
  color: var(--text-light);
  font-weight: 500;
  transition: color 0.3s ease;
  display: inline-block;
}

.character-count-warning {
  color: #f59e0b !important;
}

.character-count-danger {
  color: var(--error-color) !important;
  font-weight: 600;
}

.character-count-textarea {
  margin-bottom: 0.25rem;
}

/* Estilos de validación de formularios Bootstrap 5 */
.form-control.is-invalid,
.was-validated .form-control:invalid {
  border-color: var(--error-color) !important;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23ef4444'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 3.6.4.4.4-.4M6 8.2V6'/%3e%3c/svg%3e") !important;
  background-repeat: no-repeat !important;
  background-position: right calc(0.375em + 0.1875rem) center !important;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem) !important;
  padding-right: calc(1.5em + 0.75rem) !important;
}

.form-control.is-invalid:focus,
.was-validated .form-control:invalid:focus {
  border-color: var(--error-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(239, 68, 68, 0.25) !important;
}

.invalid-feedback {
  display: block !important;
  width: 100%;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--error-color) !important;
}

.form-control.is-valid,
.was-validated .form-control:valid {
  border-color: var(--success-color) !important;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2310b981' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e") !important;
  background-repeat: no-repeat !important;
  background-position: right calc(0.375em + 0.1875rem) center !important;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem) !important;
  padding-right: calc(1.5em + 0.75rem) !important;
}

.form-control.is-valid:focus,
.was-validated .form-control:valid:focus {
  border-color: var(--success-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(16, 185, 129, 0.25) !important;
}

.valid-feedback {
  display: block !important;
  width: 100%;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--success-color) !important;
}

/* Estilos específicos para el campo de captcha */
.field-contactform-verifycode .form-control.is-invalid,
.field-contactform-verifycode .was-validated .form-control:invalid {
  border-color: var(--error-color) !important;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23ef4444'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath d='m5.8 3.6.4.4.4-.4M6 8.2V6'/%3e%3c/svg%3e") !important;
  background-repeat: no-repeat !important;
  background-position: right calc(0.375em + 0.1875rem) center !important;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem) !important;
  padding-right: calc(1.5em + 0.75rem) !important;
}

.field-contactform-verifycode .form-control.is-invalid:focus,
.field-contactform-verifycode .was-validated .form-control:invalid:focus {
  border-color: var(--error-color) !important;
  box-shadow: 0 0 0 0.25rem rgba(239, 68, 68, 0.25) !important;
}

.field-contactform-verifycode .invalid-feedback {
  color: var(--error-color) !important;
  font-weight: 500;
  display: block !important;
}

.field-contactform-verifycode .help-block {
  color: var(--error-color) !important;
}

/* Asegurar que los mensajes de error del captcha sean visibles */
.field-contactform-verifycode.has-error .form-control {
  border-color: var(--error-color) !important;
}

.field-contactform-verifycode.has-error .help-block {
  color: var(--error-color) !important;
  display: block !important;
}

/* Responsive */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  nav .container {
    position: relative;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 5rem 2rem 2rem;
    gap: 0;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    overflow-y: auto;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu li {
    width: 100%;
    border-bottom: 1px solid var(--border-color);
    opacity: 0;
    transform: translateX(20px);
    animation: slideInRight 0.3s ease-out forwards;
  }

  .nav-menu.active li:nth-child(1) {
    animation-delay: 0.1s;
  }

  .nav-menu.active li:nth-child(2) {
    animation-delay: 0.2s;
  }

  .nav-menu.active li:nth-child(3) {
    animation-delay: 0.3s;
  }

  @keyframes slideInRight {
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }

  .nav-menu a {
    padding: 1.25rem 0;
    width: 100%;
    display: block;
    font-size: 1.1rem;
  }

  .nav-menu a::after {
    display: none;
  }

  /* Overlay cuando el menú está abierto */
  .nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 999;
  }

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

  .hero {
    padding: 3rem 0 4rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.15rem;
  }

  .features {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .feature-card {
    padding: 2rem;
  }

  .page-content {
    padding: 2rem 1.5rem;
    border-radius: 16px;
  }

  .page-content h1 {
    font-size: 2rem;
  }

  .page-content h2 {
    font-size: 1.75rem;
  }

  .error-page h1 {
    font-size: 5rem;
  }

  .error-page h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .nav-menu {
    width: 85%;
    max-width: 280px;
  }
}