:root {
    --primary: #25D366;
    --primary-dark: #128C7E;
    --dark: #0a0f1a;
    --dark-2: #111827;
    --accent: #6C63FF;
    --warning: #f59e0b;
    --danger: #ef4444;
    --text: #e2e8f0;
    --text-light: #f1f5f9;
    --text-muted: #94a3b8;
    --dark-card: #111827;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--dark);
    color: var(--text);
    overflow-x: hidden;
}

/* Navbar */
.navbar-custom {
    background: rgba(10, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(37, 211, 102, 0.1);
    padding: 1rem 0;
}
.navbar-custom .navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary) !important;
}
.navbar-custom .nav-link { color: var(--text-muted) !important; transition: color 0.3s; }
.navbar-custom .nav-link:hover { color: var(--primary) !important; }

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 50%, rgba(37, 211, 102, 0.05) 100%);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(37, 211, 102, 0.08) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}
.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}
.hero h1 span { color: var(--primary); }
.hero p.lead {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
}

/* Buttons */
.btn-wa {
    background: var(--primary);
    color: #000;
    font-weight: 700;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    border: none;
    transition: all 0.3s;
    text-decoration: none;
}
.btn-wa:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}
.btn-outline-wa {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
    font-weight: 700;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    transition: all 0.3s;
    text-decoration: none;
}
.btn-outline-wa:hover {
    background: var(--primary);
    color: #000;
}

/* Sections */
section { padding: 5rem 0; }
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
}
.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Features */
#features { background: var(--dark-2); }
.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s;
    height: 100%;
}
.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(37, 211, 102, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.feature-card h5 { font-weight: 700; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

/* Seccion El Problema */
.problema-section {
    padding: 80px 0;
    background: var(--dark-card);
}

.problema-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease;
    height: 100%;
}

.problema-card:hover {
    transform: translateY(-5px);
    border-color: var(--warning);
}

.problema-icon {
    font-size: 2.5rem;
    color: var(--warning);
    margin-bottom: 1rem;
}

.problema-card h5 {
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.problema-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Pricing */
.pricing-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s;
    height: 100%;
}
.pricing-card.featured {
    border-color: var(--primary);
    background: rgba(37, 211, 102, 0.05);
    transform: scale(1.05);
}
.pricing-card h4 { font-weight: 800; margin-bottom: 0.5rem; }
.pricing-price {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary);
    margin: 1rem 0;
}
.pricing-price span { font-size: 1rem; color: var(--text-muted); font-weight: 400; }
.pricing-features {
    list-style: none;
    padding: 0;
    text-align: left;
    margin: 1.5rem 0;
}
.pricing-features li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.95rem;
}
.pricing-features li::before {
    content: '\2713';
    color: var(--primary);
    margin-right: 0.5rem;
    font-weight: bold;
}
.pricing-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}
.pricing-features li.disabled::before {
    content: '\2717';
    color: var(--danger);
}

/* Warning */
.warning-section {
    background: rgba(245, 158, 11, 0.05);
    border-top: 2px solid var(--warning);
    border-bottom: 2px solid var(--warning);
}
.warning-section h3 { color: var(--warning); }

/* CTA */
.cta-section {
    background: linear-gradient(135deg, var(--dark-2) 0%, rgba(37, 211, 102, 0.1) 100%);
}

/* Footer */
.footer {
    background: var(--dark);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .pricing-card.featured { transform: scale(1); }
    .section-title { font-size: 2rem; }
}