:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --background-color: #f5f5f5;
    --text-color: #333;
    --card-background: #ffffff;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

header {
    background-color: var(--card-background);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    height: 40px;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    margin: 0 1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.inscripcion-btn, .cta-button, .session-option {
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    border-radius: 25px;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.inscripcion-btn:hover, .cta-button:hover, .session-option:hover {
    background-color: #3a7bc8;
    transform: translateY(-2px);
}

main {
    max-width: 1000px;
    margin: 80px auto 0;
    padding: 2rem;
}

.card {
    background-color: var(--card-background);
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.hero {
    text-align: center;
    padding: 4rem 0;
}

h1, h2 {
    margin-bottom: 1rem;
}

.session-selector {
    display: block;
    width: 100%;
    padding: 0.8rem;
    font-size: 1rem;
    border-radius: 5px;
    border: 1px solid #ddd;
    margin-bottom: 1rem;
}

.session-content {
    display: none;
    padding: 1rem;
    background-color: #f9f9f9;
    border-radius: 10px;
}

.session-content img {
    max-width: 100%;
    border-radius: 10px;
    margin-top: 1rem;
}

form {
    display: flex;
    flex-direction: column;
}

input, textarea, button {
    margin-bottom: 1rem;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

button {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

button:hover {
    background-color: #45b269;
    transform: translateY(-2px);
}

footer {
    background-color: var(--card-background);
    color: var(--text-color);
    padding: 2rem;
    text-align: center;
}

.social-media a {
    color: var(--text-color);
    font-size: 1.5rem;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

.social-media a:hover {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }
    
    .nav-links {
        margin-top: 1rem;
    }
    
    .nav-links a {
        margin: 0.5rem;
    }
    
    .session-selector {
        width: 100%;
    }
}