:root {
    --bg-color: #000;
    --text-color: #fff;
    --header-bg: #000;
    --footer-bg: #000;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Righteous', sans-serif;
    min-height: 100vh;
    background-image: url('/fondo.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: -1;
}

header {
    background-color: var(--header-bg);
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    flex-wrap: wrap;
    gap: 1rem;
}

header h1 {
    font-family: 'Righteous', sans-serif;
    font-size: 4rem;
    font-weight: 400;
    letter-spacing: normal;
}

.section-title {
    text-align: center;
    font-size: 1rem;
    font-weight: 300;
    margin: 2rem 0 1rem 0;
    letter-spacing: 0.05em;
    font-family: Arial, sans-serif;
}

.logo-grid {
    display: none;
}

.marquee-container {
    overflow: hidden;
    width: 100%;
    margin: 3rem 0;
    position: relative;
    height: 120px;
}

.marquee-content {
    display: flex;
    align-items: center;
    gap: 3rem;
    animation: scroll 60s linear infinite;
    padding: 0 1.5rem;
    height: 100%;
}

.logo-card {
    width: auto;
    height: 80px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.logo-card:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.15);
}

.access-button {
    background: transparent;
    color: var(--text-color);
    border: 2px solid var(--text-color);
    padding: 0.4rem 1.2rem;
    font-size: 0.9rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    font-family: Arial, sans-serif;
}

.access-button:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

.social-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #1877f2;
    color: #fff;
    border: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.social-button[href*="wa.me"] {
    background: #25D366;
}

.social-button:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

footer {
    background-color: var(--footer-bg);
    text-align: center;
    padding: 2rem 0;
    margin-top: auto;
}

footer p {
    font-size: 0.9rem;
    opacity: 0.7;
}

.presentation {
    max-width: 800px;
    margin: 4rem auto 2rem auto;
    padding: 0 2rem;
    text-align: center;
}

.presentation-title {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    font-family: Arial, sans-serif;
}

.presentation-text {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 2rem;
    font-family: Arial, sans-serif;
    opacity: 0.9;
    text-align: center;
}

.services-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 0.75rem;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.services-list li {
    font-family: Arial, sans-serif;
    font-size: 0.9rem;
    padding-left: 1rem;
    position: relative;
    text-align: center;
}

.services-list li::before {
    content: "";
    position: absolute;
    left: 0;
    color: var(--text-color);
    opacity: 0.7;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    header h1 {
        font-size: 3rem;
    }

    .access-button {
        margin-top: 1rem;
    }

    .marquee-content {
        gap: 2rem;
        animation: scroll 40s linear infinite;
    }

    .logo-card {
        height: 60px;
    }

    .presentation {
        margin: 2rem auto 1rem auto;
        padding: 0 1rem;
    }

    .services-list {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }
}