:root {
    --primary-bg: #0d1117;
    --secondary-surface: #161b22;
    --primary-text: #c9d1d9;
    --secondary-text: #8b949e;
    --success-color: #2ea043;
    --success-text: #fff;
    --divider-color: #30363d;
    --link-color: #58a6ff;
    --warning-tone: #d29922;
}

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

body {
    margin: 0;
    background-color: var(--primary-bg);
    color: var(--primary-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu,
    "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.45;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.container-primary {
    max-width: 980px;
    margin-inline: auto;
    margin-block: 2.5rem;
    padding-inline: 1.25rem;
}

.header-section {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.header-section h1 {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 600;
}

.publisher-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: #0b1520;
    border: 1px solid var(--divider-color);
    color: var(--secondary-text);
    padding: 0.375rem 0.625rem;
    border-radius: 0.5rem;
    font-size: 0.8125rem;
}

.content-block {
    background-color: var(--secondary-surface);
    border: 1px solid var(--divider-color);
    border-radius: 0.75rem;
    padding: 1.375rem;
    margin-block: 1.125rem;
}

.content-block h2 {
    margin-top: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

h4 {
    font-size: 1.375rem;
    font-weight: 600;
}

.subtitle-text {
    color: var(--secondary-text);
}

.layout-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(16.25rem, 1fr));
    gap: 1rem;
}

.installation-panel {
    background-color: #0f141a;
    border: 1px solid var(--divider-color);
    border-radius: 0.75rem;
    padding: 1rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    border-radius: 0.625rem;
    border: 1px solid #1f6feb;
    padding: 0.875rem 1.125rem;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s ease-in-out;
}

.button-accent {
    background-color: var(--success-color);
    border-color: #238636;
    color: var(--success-text);
}

.button-neutral {
    background-color: #21262d;
    border-color: var(--divider-color);
    color: var(--primary-text);
}

.button-full-width {
    width: 100%;
}

.button:hover {
    cursor: pointer;
    opacity: 0.9;
    transform: translateY(-1px);
}

.alert-box {
    border-left: 4px solid var(--warning-tone);
    padding: 0.625rem 0.75rem;
    background-color: #1b1f25;
    border-radius: 0.5rem;
}

video.video-demo {
    display: block;
    width: 100%;
    max-height: 22.5rem;
    border: 1px solid var(--divider-color);
    border-radius: 0.75rem;
    background-color: #0b0f14;
    object-fit: cover;
}

code,
.keyboard-key {
    background-color: #11161d;
    border: 1px solid var(--divider-color);
    border-radius: 0.5rem;
    padding: 0.1875rem 0.375rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
    font-size: 0.9em;
}

.command-container {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.command-container input {
    flex: 1;
    background-color: #0b0f14;
    border: 1px solid var(--divider-color);
    border-radius: 0.625rem;
    padding: 0.75rem;
    color: var(--primary-text);
    font-family: inherit;
    font-size: 1rem;
}

.instruction-list {
    font-size: 1rem;
    line-height: 1.6;
}

.page-footer {
    margin-block-start: 2.25rem;
    margin-block-end: 1rem;
    color: var(--secondary-text);
    font-size: 0.8125rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--divider-color);
    padding-top: 1rem;
}

.page-footer a {
    color: var(--secondary-text);
    font-size: 0.8125rem;
}

.page-footer a:hover {
    color: var(--link-color);
}