/* Vilsoft Solutions - Estilos principales */
:root {
    --primary: #0056B3;
    --primary-dark: #003d80;
    --primary-light: #49A9E1;
    --accent: #1a8fe3;
    --text: #1e293b;
    --text-light: #64748b;
    --bg: #ffffff;
    --bg-light: #f0f7ff;
    --bg-dark: #0a2540;
    --border: #e2e8f0;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --shadow: 0 4px 6px -1px rgba(0, 86, 179, 0.08);
    --shadow-lg: 0 20px 40px -10px rgba(0, 86, 179, 0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --whatsapp: #25D366;
    --ventas: #0056B3;
    --soporte: #10b981;
    --facturacion: #f59e0b;
    --topbar-height: 40px;
    --navbar-height: 84px;
    --header-height: calc(var(--topbar-height) + var(--navbar-height));
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 0.95rem;
    border: 2px solid transparent; cursor: pointer;
    transition: all var(--transition); text-align: center;
    font-family: var(--font);
}
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 14px 32px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-white { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--bg-light); color: var(--primary-dark); }
.btn-outline-white { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-white:hover { background: rgba(255,255,255,0.15); color: #fff; }
.btn-whatsapp { background: var(--whatsapp); color: #fff; border-color: var(--whatsapp); }
.btn-whatsapp:hover { background: #1da851; color: #fff; }

/* Site Header */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-lg); }

/* Topbar */
.topbar {
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 100%);
    color: rgba(255,255,255,0.9);
    height: var(--topbar-height);
    font-size: 0.8rem;
}
.topbar-container {
    display: flex; align-items: center; justify-content: space-between;
    height: 100%; gap: 16px;
}
.topbar-left { display: flex; align-items: center; gap: 20px; }
.topbar-item {
    display: inline-flex; align-items: center; gap: 8px;
    color: rgba(255,255,255,0.85); transition: color var(--transition);
}
.topbar-item:hover { color: #fff; }
.topbar-item i { color: var(--primary-light); font-size: 0.75rem; }
.topbar-social { display: flex; align-items: center; gap: 6px; }
.topbar-social a {
    width: 28px; height: 28px; border-radius: 6px;
    background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.8rem; transition: background var(--transition), transform var(--transition);
}
.topbar-social a:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }

/* Navbar */
.navbar {
    background: rgba(255,255,255,0.97); backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.nav-container { display: flex; align-items: center; justify-content: space-between; height: var(--navbar-height); }
.nav-logo { display: flex; align-items: center; flex-shrink: 0; }
.nav-logo img { height: 72px; width: auto; transition: height var(--transition); }
.site-header.scrolled .nav-logo img { height: 60px; }
.nav-menu { display: flex; align-items: center; gap: 8px; list-style: none; }
.nav-menu a {
    padding: 8px 16px; border-radius: var(--radius-sm);
    color: var(--text); font-weight: 500; font-size: 0.95rem;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--primary); background: var(--bg-light); }
.nav-toggle {
    display: none; background: none; border: none; cursor: pointer;
    padding: 0; width: 44px; height: 44px; position: relative; z-index: 1002;
    flex-shrink: 0;
}
.nav-toggle span {
    display: block; width: 24px; height: 2px;
    background: var(--text); margin: 5px auto; transition: var(--transition);
    border-radius: 2px;
}
.nav-overlay {
    display: none;
}

main { padding-top: var(--header-height); }

/* Hero */
.hero {
    position: relative; padding: 80px 0 100px; overflow: hidden;
    background: linear-gradient(135deg, var(--bg-light) 0%, #fff 50%, var(--bg-light) 100%);
}
.hero-bg {
    position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(73,169,225,0.12) 0%, transparent 60%);
}
.hero-content {
    position: relative; display: grid;
    grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0,86,179,0.1); color: var(--primary);
    padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 600;
    margin-bottom: 20px;
}
.hero h1 {
    font-size: 3rem; font-weight: 800; line-height: 1.15;
    color: var(--bg-dark); margin-bottom: 20px;
}
.hero-subtitle { font-size: 1.15rem; color: var(--text-light); margin-bottom: 32px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image { text-align: center; position: relative; }
.hero-image > img { max-width: 280px; filter: drop-shadow(0 20px 40px rgba(0,86,179,0.15)); }
.hero-stats {
    display: flex; justify-content: center; gap: 32px;
    margin-top: 32px; padding: 20px; background: #fff;
    border-radius: var(--radius); box-shadow: var(--shadow);
}
.stat-item { text-align: center; }
.stat-item strong { display: block; font-size: 1.5rem; color: var(--primary); }
.stat-item span { font-size: 0.8rem; color: var(--text-light); }

/* Sections */
.section { padding: 80px 0; }
.bg-light { background: var(--bg-light); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-tag {
    display: inline-block; color: var(--primary); font-weight: 600;
    font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 12px;
}
.section-header h2 { font-size: 2.2rem; font-weight: 700; color: var(--bg-dark); margin-bottom: 12px; }
.section-header p { color: var(--text-light); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 24px; }

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff; padding: 60px 0; text-align: center;
}
.page-hero h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 12px; }
.page-hero p { font-size: 1.1rem; opacity: 0.9; max-width: 600px; margin: 0 auto; }

/* Sectores */
.sectores-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.sector-card {
    background: #fff; padding: 32px 24px; border-radius: var(--radius);
    text-align: center; box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--border);
}
.sector-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.sector-icon {
    width: 64px; height: 64px; margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 16px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.5rem;
}
.sector-card h3 { font-size: 1.15rem; margin-bottom: 10px; color: var(--bg-dark); }
.sector-card p { color: var(--text-light); font-size: 0.9rem; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
    background: #fff; padding: 32px; border-radius: var(--radius);
    border: 1px solid var(--border); transition: box-shadow var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-lg); }
.feature-icon {
    width: 48px; height: 48px; background: var(--bg-light);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    color: var(--primary); font-size: 1.2rem; margin-bottom: 16px;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-card p { color: var(--text-light); font-size: 0.9rem; }

/* Plans */
.planes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.plan-card {
    background: #fff; border: 2px solid var(--border); border-radius: var(--radius);
    padding: 36px 28px; position: relative; transition: transform var(--transition), box-shadow var(--transition);
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.plan-destacado { border-color: var(--primary); box-shadow: var(--shadow-lg); transform: scale(1.03); }
.plan-destacado:hover { transform: scale(1.03) translateY(-4px); }
.plan-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--primary); color: #fff; padding: 4px 20px;
    border-radius: 50px; font-size: 0.8rem; font-weight: 600;
}
.plan-card h3 { font-size: 1.3rem; text-align: center; margin-bottom: 16px; color: var(--bg-dark); }
.plan-precio { text-align: center; margin-bottom: 16px; }
.plan-precio .precio { font-size: 2.5rem; font-weight: 800; color: var(--primary); }
.plan-precio .periodo { color: var(--text-light); font-size: 0.95rem; }
.plan-desc { text-align: center; color: var(--text-light); font-size: 0.9rem; margin-bottom: 24px; }
.plan-features { list-style: none; margin-bottom: 28px; }
.plan-features li {
    padding: 8px 0; font-size: 0.9rem; display: flex; align-items: center; gap: 10px;
    border-bottom: 1px solid var(--border);
}
.plan-features li i { width: 18px; text-align: center; }
.plan-features li i.fa-check { color: var(--success); }
.plan-features li.no-incluido { color: var(--text-light); opacity: 0.6; }
.plan-features li.no-incluido i.fa-times { color: var(--error); }

/* CTA */
.cta-section { padding: 60px 0; }
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius); padding: 60px 40px; text-align: center; color: #fff;
}
.cta-box h2 { font-size: 2rem; margin-bottom: 12px; }
.cta-box p { opacity: 0.9; margin-bottom: 28px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* About */
.about-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center; }
.about-content h2 { font-size: 2rem; margin-bottom: 20px; color: var(--bg-dark); }
.about-content p { color: var(--text-light); margin-bottom: 16px; font-size: 1.05rem; }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 32px; }
.about-stat {
    text-align: center; padding: 20px; background: var(--bg-light);
    border-radius: var(--radius-sm);
}
.about-stat strong { display: block; font-size: 1.8rem; color: var(--primary); }
.about-stat span { font-size: 0.8rem; color: var(--text-light); }
.about-image { text-align: center; }
.about-image img { max-width: 300px; filter: drop-shadow(0 10px 30px rgba(0,86,179,0.1)); }

/* MVV */
.mvv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mvv-card {
    background: #fff; padding: 36px 28px; border-radius: var(--radius);
    box-shadow: var(--shadow); text-align: center;
}
.mvv-icon {
    width: 56px; height: 56px; margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.3rem;
}
.mvv-card h3 { margin-bottom: 12px; color: var(--bg-dark); }
.mvv-card p { color: var(--text-light); font-size: 0.95rem; }
.valores-list { list-style: none; text-align: left; }
.valores-list li { padding: 6px 0; display: flex; align-items: center; gap: 10px; color: var(--text-light); }
.valores-list li i { color: var(--success); }

/* Tech */
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.tech-item { text-align: center; padding: 24px; }
.tech-item i { font-size: 2rem; color: var(--primary); margin-bottom: 12px; }
.tech-item h4 { margin-bottom: 8px; }
.tech-item p { color: var(--text-light); font-size: 0.9rem; }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.faq-item {
    background: #fff; padding: 24px; border-radius: var(--radius);
    border: 1px solid var(--border);
}
.faq-item h4 { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; color: var(--bg-dark); }
.faq-item h4 i { color: var(--primary); }
.faq-item p { color: var(--text-light); font-size: 0.9rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; }
.contact-info h2, .contact-form-wrapper h2 { font-size: 1.5rem; margin-bottom: 24px; color: var(--bg-dark); }
.contact-item { display: flex; gap: 16px; margin-bottom: 20px; }
.contact-icon {
    width: 44px; height: 44px; background: var(--bg-light);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    color: var(--primary); flex-shrink: 0;
}
.contact-item strong { display: block; font-size: 0.85rem; color: var(--text-light); }
.contact-whatsapp-list { display: flex; flex-direction: column; gap: 10px; }
.contact-wa-btn {
    display: flex; align-items: center; gap: 12px; padding: 12px 16px;
    border-radius: var(--radius-sm); border: 1px solid var(--border);
    transition: all var(--transition); color: var(--text);
}
.contact-wa-btn:hover { border-color: var(--whatsapp); background: rgba(37,211,102,0.05); color: var(--text); }
.contact-wa-btn i { font-size: 1.5rem; color: var(--whatsapp); }
.contact-wa-btn strong { display: block; font-size: 0.9rem; }
.contact-wa-btn span { font-size: 0.8rem; color: var(--text-light); }

/* Forms */
.contact-form-wrapper {
    background: #fff; padding: 36px; border-radius: var(--radius);
    box-shadow: var(--shadow); border: 1px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 0.9rem; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 16px; border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-family: var(--font); font-size: 0.95rem;
    transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,86,179,0.1);
}
.alert {
    padding: 16px 20px; border-radius: var(--radius-sm); margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px; font-size: 0.95rem;
}
.alert-success { background: rgba(16,185,129,0.1); color: #065f46; border: 1px solid rgba(16,185,129,0.2); }
.alert-error { background: rgba(239,68,68,0.1); color: #991b1b; border: 1px solid rgba(239,68,68,0.2); }

/* Demo */
.demo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.demo-card {
    background: #fff; padding: 36px 28px; border-radius: var(--radius);
    text-align: center; box-shadow: var(--shadow); border: 1px solid var(--border);
    transition: transform var(--transition);
}
.demo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.demo-icon {
    width: 72px; height: 72px; margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 20px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.8rem;
}
.demo-card h3 { margin-bottom: 10px; }
.demo-card p { color: var(--text-light); font-size: 0.9rem; margin-bottom: 20px; }
.demo-personalizada {
    display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; align-items: center;
    background: #fff; padding: 48px; border-radius: var(--radius); box-shadow: var(--shadow);
}
.demo-personalizada h2 { font-size: 1.8rem; margin-bottom: 12px; color: var(--bg-dark); }
.demo-personalizada p { color: var(--text-light); margin-bottom: 20px; }
.demo-benefits { list-style: none; }
.demo-benefits li { padding: 6px 0; display: flex; align-items: center; gap: 10px; }
.demo-benefits li i { color: var(--success); }
.demo-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.demo-feature { text-align: center; padding: 24px; }
.demo-feature i { font-size: 2rem; color: var(--primary); margin-bottom: 12px; }
.demo-feature h4 { margin-bottom: 8px; }
.demo-feature p { color: var(--text-light); font-size: 0.85rem; }

/* Footer */
.footer { background: var(--bg-dark); color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer-logo-wrap {
    display: inline-block; background: #fff; padding: 14px 22px;
    border-radius: var(--radius-sm); margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15); transition: transform var(--transition);
}
.footer-logo-wrap:hover { transform: translateY(-2px); }
.footer-logo {
    height: 72px; width: auto; display: block;
    max-width: 220px; object-fit: contain;
}
.footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 36px; height: 36px; border-radius: 8px;
    background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center;
    color: #fff; transition: background var(--transition);
}
.footer-social a:hover { background: var(--primary); color: #fff; }
.footer-links h4, .footer-contact h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.footer-links ul, .footer-contact ul { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 0.9rem; }
.footer-links a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 0.9rem; }
.footer-contact li i { color: var(--primary-light); width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center;
    font-size: 0.85rem; color: rgba(255,255,255,0.5);
}

/* WhatsApp Widget */
.whatsapp-widget { position: fixed; bottom: 24px; right: 24px; z-index: 9999; }
.whatsapp-toggle {
    width: 60px; height: 60px; border-radius: 50%;
    background: var(--whatsapp); border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.8rem; box-shadow: 0 4px 20px rgba(37,211,102,0.4);
    transition: transform var(--transition); position: relative;
}
.whatsapp-toggle:hover { transform: scale(1.1); }
.whatsapp-pulse {
    position: absolute; inset: -4px; border-radius: 50%;
    border: 2px solid var(--whatsapp); animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.4); opacity: 0; }
}
.whatsapp-panel {
    position: absolute; bottom: 72px; right: 0; width: 320px;
    background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg);
    overflow: hidden; display: none; animation: slideUp 0.3s ease;
}
.whatsapp-panel.active { display: block; }
@keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.whatsapp-header {
    background: var(--whatsapp); color: #fff; padding: 16px 20px;
    display: flex; align-items: center; gap: 12px;
}
.whatsapp-header i { font-size: 1.5rem; }
.whatsapp-header strong { display: block; font-size: 0.95rem; }
.whatsapp-header small { opacity: 0.9; font-size: 0.8rem; }
.whatsapp-close {
    margin-left: auto; background: none; border: none;
    color: #fff; cursor: pointer; font-size: 1rem; padding: 4px;
}
.whatsapp-agents { padding: 8px; }
.whatsapp-agent {
    display: flex; align-items: center; gap: 12px; padding: 12px;
    border-radius: var(--radius-sm); transition: background var(--transition); color: var(--text);
}
.whatsapp-agent:hover { background: var(--bg-light); color: var(--text); }
.agent-icon {
    width: 40px; height: 40px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.9rem;
}
.whatsapp-ventas .agent-icon { background: var(--ventas); }
.whatsapp-soporte .agent-icon { background: var(--soporte); }
.whatsapp-facturacion .agent-icon { background: var(--facturacion); }
.agent-info strong { display: block; font-size: 0.9rem; }
.agent-info span { font-size: 0.8rem; color: var(--text-light); }
.whatsapp-agent > .fa-chevron-right { margin-left: auto; color: var(--text-light); font-size: 0.8rem; }

/* Responsive */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-subtitle { margin: 0 auto 32px; }
    .hero-actions { justify-content: center; }
    .hero-image { order: -1; }
    .hero-image > img { max-width: 200px; }
    .sectores-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .planes-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .plan-destacado { transform: none; }
    .about-grid { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: repeat(2, 1fr); }
    .mvv-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .demo-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .demo-personalizada { grid-template-columns: 1fr; }
    .demo-features { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root {
        --topbar-height: 36px;
        --navbar-height: 68px;
    }
    body.menu-open { overflow: hidden; }
    .topbar-item span { display: none; }
    .topbar-phone { display: none; }
    .topbar-left { gap: 0; }
    .nav-container { position: relative; }
    .nav-logo { max-width: calc(100% - 52px); }
    .nav-logo img { height: 48px; max-height: 48px; }
    .site-header.scrolled .nav-logo img { height: 44px; max-height: 44px; }
    .nav-toggle {
        display: flex; flex-direction: column; align-items: center; justify-content: center;
    }
    .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(5px, -5px); }
    .nav-overlay {
        display: block; position: fixed; left: 0; right: 0; bottom: 0;
        top: var(--header-height); background: rgba(10, 37, 64, 0.45);
        z-index: 1001; opacity: 0; visibility: hidden;
        transition: opacity var(--transition), visibility var(--transition);
    }
    .nav-overlay.active { opacity: 1; visibility: visible; }
    .nav-menu {
        position: fixed; top: var(--header-height); left: 0; right: 0;
        z-index: 1002; background: #fff; flex-direction: column; align-items: stretch;
        padding: 12px 16px 20px; box-shadow: var(--shadow-lg); gap: 4px;
        max-height: calc(100dvh - var(--header-height)); overflow-y: auto;
        opacity: 0; visibility: hidden; pointer-events: none;
        transform: translateY(-8px);
        transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
        border-bottom: 1px solid var(--border);
    }
    .nav-menu.active {
        opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0);
    }
    .nav-menu li { width: 100%; }
    .nav-menu a {
        display: flex; align-items: center; justify-content: center;
        width: 100%; padding: 14px 16px; font-size: 1rem;
    }
    .nav-menu .nav-cta { margin-top: 8px; }
    .hero h1 { font-size: 2rem; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .sectores-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .about-stats { grid-template-columns: 1fr 1fr; }
    .tech-grid { grid-template-columns: 1fr; }
    .demo-features { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-logo { height: 56px; }
    .footer-logo-wrap { padding: 10px 16px; }
    .whatsapp-panel { width: calc(100vw - 48px); right: 0; }
}