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

html {
    font-size: 16px;
}

body {
    background: #000000;
    color: #ffffff;
    font-family: Arial, sans-serif;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: #5599ee;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ========== INDEX PAGE ========== */

.index-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 24px 40px;
    text-align: center;
}

.index-main h1 {
    font-size: 1.9em;
    font-weight: bold;
    line-height: 1.45;
    margin-bottom: 18px;
}

.index-subtitle {
    font-size: 1em;
    color: #cccccc;
    margin-bottom: 48px;
}

.doc-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.doc-links a {
    font-size: 1.15em;
}

/* ========== DOCUMENT PAGES ========== */

.doc-container {
    flex: 1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 24px;
}

.back-link {
    display: inline-block;
    margin-bottom: 36px;
    font-size: 0.9em;
}

.doc-meta {
    font-size: 0.9em;
    color: #cccccc;
    margin-bottom: 36px;
    line-height: 1.8;
}

.doc-meta strong {
    color: #ffffff;
}

.doc-container h1 {
    font-size: 1.75em;
    margin-bottom: 24px;
}

.doc-container h2 {
    font-size: 1.15em;
    margin-top: 32px;
    margin-bottom: 12px;
}

.doc-container h3 {
    font-size: 1.05em;
    margin-top: 24px;
    margin-bottom: 10px;
}

.doc-container p {
    margin-bottom: 14px;
}

.doc-container ul {
    margin: 0 0 14px 28px;
}

.doc-container ul li {
    margin-bottom: 5px;
}

.doc-container section {
    margin-bottom: 10px;
}

/* ========== FOOTER ========== */

footer {
    text-align: center;
    padding: 28px 20px 24px;
    font-size: 0.85em;
    color: #777777;
}

.footer-dots {
    letter-spacing: 3px;
    margin-bottom: 12px;
    overflow: hidden;
    white-space: nowrap;
}

footer a {
    color: #777777;
}

footer a:hover {
    text-decoration: underline;
}

/* ========== RESPONSIVE ========== */

@media (max-width: 640px) {
    .index-main h1 {
        font-size: 1.35em;
    }

    .index-main {
        padding: 48px 20px 32px;
    }

    .doc-container {
        padding: 28px 18px;
    }

    .doc-container h1 {
        font-size: 1.4em;
    }
}