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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background: linear-gradient(135deg, #1976D2, #1565C0);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

.logo img {
    height: 45px;
    width: auto;
    filter: brightness(1.1);
}

.back-link {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    transition: all 0.3s;
}

.back-link:hover {
    background: rgba(255,255,255,0.1);
}

.main-content {
    background: white;
    margin: 2rem 0;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.page-title {
    font-size: 2.5rem;
    color: #1976D2;
    margin-bottom: 1rem;
    text-align: center;
}

.last-updated {
    text-align: center;
    color: #666;
    margin-bottom: 2rem;
    font-style: italic;
}

.toc {
    background: #e3f2fd;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    border-left: 4px solid #1976D2;
}

.toc h3 {
    color: #1976D2;
    margin-bottom: 1rem;
}

.toc ul {
    list-style: none;
    padding-left: 0;
}

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    color: #1976D2;
    text-decoration: none;
    transition: all 0.3s;
    display: block;
    padding: 4px 8px;
    border-radius: 4px;
}

.toc a:hover {
    background: rgba(25, 118, 210, 0.1);
    color: #FFC107;
}

.section {
    margin-bottom: 3rem;
    opacity: 0;
}

.section h2 {
    color: #1976D2;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #e3f2fd;
    padding-bottom: 0.5rem;
}

.section h3 {
    color: #1565C0;
    margin: 1.5rem 0 0.8rem 0;
    font-size: 1.3rem;
}

.section h4 {
    color: #333;
    margin: 1rem 0 0.5rem 0;
}

.highlight-box {
    background: linear-gradient(135deg, #e8f5e8, #f1f8e9);
    border-left: 4px solid #4CAF50;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
}

.warning-box {
    background: linear-gradient(135deg, #fff3e0, #ffeaa7);
    border-left: 4px solid #FF9800;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
}

.premium-box {
    background: linear-gradient(135deg, #fff9c4, #ffd700);
    border-left: 4px solid #FFD700;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.payment-box {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-left: 4px solid #2196F3;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
}

.pricing-table {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.pricing-card {
    background: white;
    border: 2px solid #e3f2fd;
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s;
}

.pricing-card:hover {
    border-color: #1976D2;
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(25, 118, 210, 0.2);
}

.pricing-card.featured {
    border-color: #FFD700;
    background: linear-gradient(135deg, #fff9c4, #ffffff);
    position: relative;
}

.pricing-card.featured::before {
    content: "¡Más Popular!";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: #FFD700;
    color: #1976D2;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

.price {
    font-size: 2.5rem;
    color: #1976D2;
    font-weight: bold;
    margin: 1rem 0;
}

.price .currency {
    font-size: 1.5rem;
}

.price .period {
    font-size: 1rem;
    color: #666;
}

.contact-info {
    background: #f5f5f5;
    padding: 2rem;
    border-radius: 10px;
    margin-top: 2rem;
    text-align: center;
}

ul {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

li {
    margin-bottom: 0.5rem;
}

strong {
    color: #1976D2;
}

.fade-in {
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.openpay-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1rem 0;
    padding: 1rem;
    background: rgba(33, 150, 243, 0.1);
    border-radius: 8px;
}

.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.security-feature {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid #4CAF50;
}

@media (max-width: 768px) {
    .main-content {
        padding: 1.5rem;
        margin: 1rem 0;
    }

    .page-title {
        font-size: 2rem;
    }

    nav {
        flex-direction: column;
        gap: 1rem;
    }

    .pricing-table {
        grid-template-columns: 1fr;
    }
}