:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --background-dark: #1a1c22;
    --background-light: #323641;
    --text-light: #ffffff;
    --text-dark: #333333;
    --accent-color: #e74c3c;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background: var(--background-dark);
    color: var(--text-light);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #2980b9);
    color: white;
    border: none;
}

.btn-secondary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 20px;
    margin: 15px 0;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

/* Animations globales */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .btn {
        padding: 10px 20px;
    }
}