* { box-sizing: border-box; }

:root {
    --bg-color: #efefeb;
    --text-color: #373838;
    --border-color: #ccc;
    --font-serif: "Times New Roman", serif;
}

html, body {
    height: 100%;
    margin: 0;
    font-size: 18px;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-serif), serif;
    line-height: 1.6;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main-container {
    max-width: 800px;
    width: 90%;
    padding: 20px;
    flex: 1;
    position: relative;
}

h1 {
    text-align: center;
    margin-top: 40px;
    margin-bottom: 40px;
    font-size: 2.5rem;
}

h2 {
    font-size: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
    padding-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 30px;
}

.left-column { text-align: right; }
.right-column { text-align: left; }

ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

li { margin-bottom: 1rem; }

details {
    margin-bottom: 1rem;
    cursor: pointer;
}

summary {
    font-weight: bold;
    list-style: none; /* Removes the default arrow in some browsers */
}

summary::-webkit-details-marker {
    display: none; /* Removes the default arrow in Safari/Chrome */
}

summary:hover {
    opacity: 0.7;
}

.tag {
    display: inline-block;
    background-color: rgba(0,0,0,0.05);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-right: 5px;
    border: 1px solid var(--border-color);
}

details ul {
    margin-top: 10px;
    padding-left: 20px;
    border-left: 2px solid var(--border-color);
}

a {
    color: var(--text-color);
    text-decoration: underline;
    font-weight: bold;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.7;
}

footer {
    padding: 30px 20px;
    border-top: 1px solid var(--border-color);
    width: 100%;
    font-size: 0.9rem;
}

footer p {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-left {
    flex: 1;
    text-align: right;
    padding-right: 15px;
}

.footer-right {
    flex: 1;
    text-align: left;
    padding-left: 15px;
}

.footer-separator {
    opacity: 0.5;
}

.intro-text {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
}

@media (max-width: 600px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .left-column, .right-column { text-align: center; }

    footer p {
        flex-direction: column;
        gap: 10px;
    }
    .footer-left, .footer-right {
        text-align: center;
        padding: 0;
    }
    .footer-separator {
        display: none;
    }
}

/* Subtle Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background-color: #d1d1cd;
    border-radius: 20px;
    border: 3px solid var(--bg-color);
}

::-webkit-scrollbar-thumb:hover {
    background-color: #bbb;
}

/* Firefox Support */
* {
    scrollbar-width: thin;
    scrollbar-color: #d1d1cd var(--bg-color);
}