/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.875rem;
}

.btn-large {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #1e40af, #2563eb);
    color: white;
    box-shadow: 0 4px 20px -4px rgba(30, 64, 175, 0.15);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 10px 40px -8px rgba(30, 64, 175, 0.25);
}

.btn-outline {
    border: 1px solid #e2e8f0;
    color: #1e293b;
    background: white;
}

.btn-outline:hover {
    background: #f8fafc;
    border-color: #1e40af;
    color: #1e40af;
}

.btn-secondary {
    background: #e2e8f0;
    color: #1e293b;
}

.btn-secondary:hover {
    background: #cbd5e1;
}

.btn-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-left: 0.5rem;
}

.btn-outline .btn-icon {
    margin-right: 0.5rem;
    margin-left: 0;
}

/* Header */
.header-sticky {
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    border-bottom: 1px solid #e2e8f0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    height: 4rem;
    align-items: center;
    justify-content: space-between;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    display: flex;
    height: 2rem;
    width: 2rem;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    background: linear-gradient(135deg, #1e40af, #2563eb);
}

.logo-icon span {
    font-size: 0.875rem;
    font-weight: bold;
    color: white;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: bold;
    color: #1e40af;
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-desktop {
        display: flex;
    }
}

.nav-link {
    color: #1e293b;
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #1e40af;
}

.header-buttons {
    display: none;
    align-items: center;
    gap: 1rem;
}

@media (min-width: 768px) {
    .header-buttons {
        display: flex;
    }
}

.mobile-menu-btn {
    display: flex;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.25rem;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.hamburger {
    width: 1.5rem;
    height: 1.5rem;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M4 6h16M4 12h16M4 18h16'/%3e%3c/svg%3e");
    background-size: contain;
    background-repeat: no-repeat;
}

.mobile-menu-btn.active .hamburger {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='currentColor'%3e%3cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M6 18L18 6M6 6l12 12'/%3e%3c/svg%3e");
}

.mobile-nav {
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px -4px rgba(30, 64, 175, 0.15);
    display: none;
}

.mobile-nav.active {
    display: block;
}

@media (min-width: 768px) {
    .mobile-nav {
        display: none !important;
    }
}

.mobile-nav-content {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
}

.mobile-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: 1rem;
}

/* Hero Section */
.hero-section {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    padding: 5rem 0 8rem;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        padding: 8rem 0;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    animation: fadeInUp 0.6s ease-out;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: #1e293b;
    line-height: 1.2;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.75rem;
    }
}

.title-highlight {
    display: block;
    color: #1e40af;
}

.hero-description {
    font-size: 1.125rem;
    color: #64748b;
    max-width: 32rem;
}

@media (min-width: 768px) {
    .hero-description {
        font-size: 1.25rem;
    }
}

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

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    font-size: 0.875rem;
    color: #64748b;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-dot {
    width: 0.5rem;
    height: 0.5rem;
    background: #059669;
    border-radius: 50%;
}

.hero-image {
    position: relative;
    animation: scaleIn 0.4s ease-out;
}

.image-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #1e40af, #059669);
    opacity: 0.2;
    border-radius: 1rem;
    filter: blur(3rem);
}

.hero-img {
    position: relative;
    z-index: 10;
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 20px 60px -12px rgba(30, 64, 175, 0.35);
}

/* Footer */
.footer {
    background: #1e40af;
    color: white;
}

.footer .container {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-logo-icon {
    display: flex;
    height: 2rem;
    width: 2rem;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    background: rgba(255, 255, 255, 0.2);
}

.footer-logo-icon span {
    font-size: 0.875rem;
    font-weight: bold;
}

.footer-logo-text {
    font-size: 1.25rem;
    font-weight: bold;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: white;
}

.social-link svg {
    width: 1.125rem;
    height: 1.125rem;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-icon {
    width: 1.125rem;
    height: 1.125rem;
    color: rgba(255, 255, 255, 0.6);
}

.contact-item span {
    color: rgba(255, 255, 255, 0.8);
}

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

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.375rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 0.875rem;
}

.newsletter-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

@media (min-width: 768px) {
    .footer-bottom-content {
        flex-direction: row;
        justify-content: space-between;
    }
}

.copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-bottom-links {
    display: flex;
    gap: 1.5rem;
    font-size: 0.875rem;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: white;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Modal genérico */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45); /* slate-900 con opacidad */
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100; /* por encima del header sticky */
  backdrop-filter: blur(2px);
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 520px;
  background: #ffffff;
  border-radius: 0.75rem;
  box-shadow: 0 25px 80px -20px rgba(30, 64, 175, 0.35);
  padding: 1.25rem;
  animation: scaleIn 0.18s ease-out;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.modal-header h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #1e293b;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: #64748b;
}

.modal-close:hover {
  color: #1e293b;
}

.modal-description {
  color: #64748b;
  margin-bottom: 1rem;
}

.modal-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

@media (min-width: 480px) {
  .modal-options {
    grid-template-columns: repeat(3, 1fr);
  }
}

.modal-hint {
  font-size: 0.75rem;
  color: #94a3b8;
}