/* Reset y variables CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Tema Claro */
    --black: #000000;
    --white: #ffffff;
    --gray-100: #f5f5f7;
    --gray-200: #e5e5e7;
    --gray-300: #d2d2d7;
    --gray-400: #86868b;
    --gray-500: #6e6e73;
    --gray-600: #424245;
    --gray-700: #1d1d1f;
    --primary: #244577;
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
    
    /* Variables de tema */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-100);
    --text-primary: var(--black);
    --text-secondary: var(--gray-500);
    --border-color: var(--gray-200);
    --card-bg: var(--white);
    --shadow: rgba(0, 0, 0, 0.1);
}

/* Tema Oscuro */
[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border-color: #2a2a2a;
    --card-bg: #1a1a1a;
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navegación */
.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    transition: all 0.3s ease;
}

.nav-logo h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    transition: color 0.3s ease;
}

/* Theme Switch */
.theme-switch {
    display: flex;
    align-items: center;
    margin-right: 1rem;
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    transform: scale(1.1);
}

.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    transition: all 0.3s ease;
}

.nav-item {
    display: flex;
    align-items: center;
    transition: transform 0.2s ease;
}

.nav-item:hover {
    transform: translateY(-1px);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    transform: translateY(-1px);
}

.nav-link.active {
    color: var(--text-primary);
    border-bottom-color: var(--primary);
}

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

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

/* Páginas */
.page {
    display: none;
    flex: 1;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.page.active {
    display: block;
    opacity: 1;
}

/* Header */
.header {
    padding: 2rem 0 1.5rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
    opacity: 1;
    transition: opacity 0.05s ease;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.logo p {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 0;
    opacity: 1;
    transition: opacity 0.15s ease;
}

/* Página de Inicio - Features */
.features-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px var(--shadow);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Página del Proceso IA */
.process-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.step-card {
    display: flex;
    gap: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.step-card:hover::before {
    left: 100%;
}

.step-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--shadow);
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.75rem;
}

.step-content ul {
    list-style: none;
    padding: 0;
}

.step-content li {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
    margin-bottom: 0.25rem;
    padding-left: 0;
}

.step-content li:before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    margin-right: 0.5rem;
}

.ai-analysis {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.ai-analysis h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.ai-analysis p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Página de Resultados */
.results-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.result-card:hover::before {
    left: 100%;
}

.result-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.result-icon {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.result-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.result-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.evaluation-criteria {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.evaluation-criteria h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.criteria-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.75rem;
}

.criteria-item {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.4;
    padding: 0.5rem;
    background: var(--card-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.criteria-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Página de Empresas */
.companies-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.companies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.company-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.company-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.company-icon {
    width: 64px;
    height: 64px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.company-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    letter-spacing: -0.01em;
}

.company-type {
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.company-card ul {
    list-style: none;
    padding: 0;
}

.company-card li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
    padding-left: 0;
}

.company-card li:before {
    content: "✓";
    color: var(--primary);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* Página de Descarga - QR Section */
.qr-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

/* Platforms */
.platforms {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.platform {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.platform:last-child {
    border-bottom: none;
}

.platform-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 150px;
    flex-shrink: 0;
}

.platform-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border-radius: 8px;
    padding: 8px;
}

[data-theme="dark"] .platform-icon {
    background: #4a4a4a;
    border: 1px solid #5a5a5a;
}

.platform-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--primary);
}

[data-theme="dark"] .platform-icon svg {
    fill: #ffffff;
    opacity: 1;
    filter: brightness(1.2);
}

.platform-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

/* QR Container */
.qr-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 50%;
}

.qr-image {
    width: 220px;
    height: 220px;
    object-fit: contain;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 16px;
    background: var(--white);
    /* Filtros especiales para QR */
    filter: contrast(1.1) brightness(1.05) saturate(1.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.qr-image:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    filter: contrast(1.2) brightness(1.1) saturate(1.3);
}

/* Página de Detalles Técnicos */
.tech-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.tech-card:hover::before {
    left: 100%;
}

.tech-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.tech-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.tech-card ul {
    list-style: none;
}

.tech-card li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    padding-left: 0;
}

.tech-card strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Página de Seguridad */
.security-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.security-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.security-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.security-card:hover::before {
    left: 100%;
}

.security-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.security-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.security-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.security-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Página de Estadísticas */
.stats-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.stat-card:hover::before {
    left: 100%;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.stat-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.stat-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.performance-metrics {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.performance-metrics h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.metrics-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 0.75rem;
}

.metric-item {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.4;
    padding: 0.5rem;
    background: var(--card-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.metric-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Página de Términos y Condiciones */
.terms-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.terms-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.terms-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.terms-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.terms-card:hover::before {
    left: 100%;
}

.terms-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.terms-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.terms-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.terms-card ul {
    list-style: none;
    padding: 0;
}

.terms-card li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
}

.terms-card li:before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.terms-card strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

/* Responsive Design */



@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
        height: auto;
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 15px;
        max-width: 100%;
    }
    
    .nav-menu {
        gap: 0.75rem;
        flex-wrap: wrap;
        justify-content: center;
        max-width: 100%;
        padding: 0 10px;
    }
    
    .nav-link {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
        border-radius: 4px;
        border-bottom: none;
    }
    
    .nav-link.active {
        background: var(--primary);
        color: var(--white);
        border-bottom: none;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .qr-section h2,
    .features-section h2,
    .tech-section h2,
    .process-section h2,
    .results-section h2,
    .security-section h2,
    .stats-section h2,
    .terms-section h2 {
        font-size: 1.25rem;
    }
    
    .platforms {
        gap: 1.5rem;
    }
    
    .platform {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        align-items: center;
        justify-content: center;
    }
    
    .platform-header {
        min-width: auto;
        justify-content: center;
        width: 100%;
        flex-shrink: 1;
    }
    
    .qr-container {
        width: 100%;
        justify-content: center;
        max-width: 100%;
    }
    
    .qr-image {
        width: 200px;
        height: 200px;
    }
    
    .platform-icon {
        width: 32px;
        height: 32px;
    }
    
    .platform-icon svg {
        width: 18px;
        height: 18px;
    }
    
    .features-grid,
    .tech-grid,
    .results-grid,
    .security-grid,
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .terms-content {
        gap: 1rem;
    }
    
    .process-steps {
        gap: 1rem;
    }
    
    .step-card {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .step-number {
        align-self: center;
    }
    
    .criteria-list,
    .metrics-list {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0.75rem 15px;
    }
    
    .nav-menu {
        gap: 0.25rem;
    }
    
    .nav-link {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
    
    .logo h1 {
        font-size: 1.75rem;
    }
    
    .qr-section h2,
    .features-section h2,
    .tech-section h2,
    .process-section h2,
    .results-section h2,
    .security-section h2,
    .stats-section h2,
    .terms-section h2 {
        font-size: 1.125rem;
    }
    
    .platform-header h3 {
        font-size: 1.125rem;
    }
    
    .platform-icon {
        width: 28px;
        height: 28px;
    }
    
    .platform-icon svg {
        width: 16px;
        height: 16px;
    }
    
    .qr-image {
        width: 180px;
        height: 180px;
    }
    
    .platform {
        padding: 0.75rem 0;
    }
    
    .step-card {
        padding: 1rem;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .security-icon,
    .result-icon,
    .feature-icon {
        width: 40px;
        height: 40px;
    }
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--white);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Manual de Usuario */
.manual-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.download-info {
    margin-bottom: 3rem;
}

.info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.info-card:hover::before {
    left: 100%;
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.info-icon {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.info-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.info-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 1rem;
}

.manual-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.manual-link:hover {
    color: #4a90e2;
    text-decoration: underline;
}

.manual-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.manual-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.manual-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(36, 69, 119, 0.1), transparent);
    transition: left 0.5s ease;
}

.manual-card:hover::before {
    left: 100%;
}

.manual-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.manual-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.manual-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.manual-card ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.manual-card li {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.manual-card li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.download-button {
    text-align: center;
    margin-top: 1.5rem;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(36, 69, 119, 0.3);
    background: #4a90e2;
}

.btn-download svg {
    width: 20px;
    height: 20px;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-item {
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Responsive para Manual de Usuario */
@media (max-width: 768px) {
    .manual-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .manual-card {
        padding: 1.5rem;
    }
    
    .info-card {
        padding: 1.5rem;
    }
    
    .manual-section h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .manual-section h2 {
        font-size: 1.5rem;
    }
    
    .info-card h3 {
        font-size: 1.25rem;
    }
    
    .manual-card h3 {
        font-size: 1.1rem;
    }
    
    .btn-download {
        padding: 0.625rem 1.25rem;
        font-size: 0.85rem;
    }
}