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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #1a1a1a;
    color: #ffffff;
    min-height: 100vh;
    overflow-x: hidden;
}

.page {
    width: calc(100vw - 56px);
    max-width: 1220px;
    margin: 0 auto;
    padding: 28px 20px 44px;
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.nav a {
    display: inline-block;
    text-decoration: none;
    background: #2a2a2a;
    border: 2px solid #555555;
    color: #cccccc;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 0.86rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    transition: all 0.3s ease;
}

.nav a:hover {
    border-color: #888888;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.nav a.active {
    background: #666666;
    border-color: #888888;
    color: #ffffff;
}

.hero,
.card,
.note {
    background: #2a2a2a;
    border: 2px solid #555555;
    border-radius: 10px;
    padding: 24px;
}

.hero {
    margin-bottom: 20px;
}

h1 {
    color: #ffffff;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    margin-bottom: 10px;
}

h2 {
    color: #ffffff;
    font-size: 1.25rem;
    margin-bottom: 12px;
}

h3 {
    color: #ffffff;
    font-size: 1.05rem;
    margin-bottom: 8px;
}

p,
li {
    color: #cccccc;
    line-height: 1.65;
}

.section {
    margin-bottom: 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
}

.modules-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.card {
    transition: all 0.3s ease;
}

.card:hover {
    border-color: #777777;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-link .card {
    height: 100%;
}

.module-card {
    min-height: 230px;
    padding: 26px;
}

.module-card h2 {
    font-size: 1.65rem;
    margin-bottom: 14px;
}

.module-card p {
    font-size: 1.04rem;
    line-height: 1.7;
}

.module-card--wide {
    grid-column: 1 / -1;
}

.chip {
    display: inline-block;
    background: #1a1a1a;
    border: 1px solid #666666;
    border-radius: 4px;
    color: #cccccc;
    font-size: 0.75rem;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    font-weight: 600;
    padding: 4px 8px;
    margin-bottom: 10px;
}

.module-chip {
    font-size: 0.82rem;
    padding: 5px 10px;
}

pre {
    margin-top: 8px;
    background: #1a1a1a;
    border: 2px solid #555555;
    border-radius: 8px;
    padding: 14px;
    overflow-x: auto;
}

code {
    font-family: 'Courier New', monospace;
    color: #ffffff;
    font-size: 0.9rem;
}

.note {
    border-left: 4px solid #888888;
    color: #cccccc;
}

ul {
    margin: 8px 0 0 18px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 8px;
    background: #1a1a1a;
    border: 2px solid #555555;
    border-radius: 8px;
    overflow: hidden;
}

th,
td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid #444444;
}

th {
    color: #ffffff;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    background: #232323;
}

td {
    color: #cccccc;
}

tr:last-child td {
    border-bottom: none;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    border-radius: 8px;
}

.table-wrap table {
    margin-top: 0;
    min-width: 640px;
}

.footer-link {
    margin-top: 22px;
    color: #cccccc;
}

.footer-link a {
    color: #ffffff;
    text-decoration: none;
    border-bottom: 1px solid #666666;
}

.footer-link a:hover {
    border-bottom-color: #999999;
}

.page-links {
    margin-top: 24px;
    display: flex;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.page-links a {
    color: #cccccc;
    text-decoration: none;
    border-bottom: 1px solid #666666;
    padding-bottom: 2px;
}

.page-links a:hover {
    color: #ffffff;
    border-bottom-color: #999999;
}

@media (max-width: 700px) {
    .page {
        padding: 16px 12px 30px;
        width: calc(100vw - 16px);
    }

    .hero,
    .card,
    .note {
        padding: 16px;
    }

    .nav a {
        width: 100%;
        text-align: center;
    }

    .page-links {
        flex-direction: column;
    }

    .modules-grid {
        grid-template-columns: 1fr;
    }

    .module-card--wide {
        grid-column: auto;
    }

    .table-wrap table {
        min-width: 560px;
    }
}