:root {
    --h1: 3rem;        /* 48px */
    --h2: 2.25rem;     /* 36px */
    --h3: 1.75rem;     /* 28px */
    --h4: 1.5rem;      /* 24px */
    --body: 1rem;      /* 16px */
    --small: 0.875rem; /* 14px */
    --caption: 0.75rem;/* 12px */

    --text-color: #ffffff; /* Color del texto */
    --bg-color: #000000;   /* Fondo oscuro */
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
    margin: 0;
    font-family: "Geist Sans", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);

    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 3rem;
    padding: 1rem;
}

.main-content {
    opacity: 0;
    transform: translateY(-20px) scale(0.96);
    animation: fadeIn 1.2s ease forwards;
}

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

footer.credits {
    text-align: center;
    font-size: var(--small);
    opacity: 0.7;
    padding: 0.75rem 1rem;
}

.logo {
    width: 175px;
    height: auto;
    transition: transform 0.7s ease;
    transform-style: preserve-3d;
}

.logo:hover {
    transform: rotate3d(1, 1, 0, 27deg);
}

.org-name {
    font-size: var(--h1);
    font-weight: 600;
}

.org-name a{
    display: inline-block;
    text-decoration: none;
    color: inherit;
    transition: 0.7s ease, color 1s ease;
    cursor: pointer;
}

.org-name a:hover {
    transform: scale(1.03);
    color: #a1a1a1;
}