body.doc-body {
    min-height: 100vh;
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    color: var(--ui-text);
    background: linear-gradient(180deg, #f3f6fa 0%, var(--ui-bg) 100%);
}

.doc-hero {
    padding: 32px 24px 22px;
    background: linear-gradient(180deg, #f8fafc 0%, #f2f5f9 100%);
    border-bottom: 1px solid rgba(154, 169, 184, 0.2);
}

.doc-hero-inner,
.doc-shell,
.doc-footer {
    width: min(1120px, calc(100vw - 32px));
    margin: 0 auto;
}

.doc-hero h1 {
    margin: 0 0 8px;
    font-size: clamp(30px, 3.8vw, 42px);
    line-height: 1.08;
}

.doc-subtitle {
    max-width: 760px;
    margin: 0;
    color: var(--ui-muted);
    font-size: 17px;
    line-height: 1.65;
}

.doc-shell {
    display: grid;
    gap: 18px;
    padding: 24px 0 40px;
}

.doc-panel {
    padding: 18px;
}

.doc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
}

.doc-content {
    display: grid;
    gap: 16px;
}

.doc-content h1,
.doc-content h2,
.doc-content h3 {
    margin: 0;
    color: var(--ui-text);
    line-height: 1.2;
}

.doc-content h1 {
    font-size: 34px;
}

.doc-content h2 {
    margin-top: 18px;
    font-size: 26px;
}

.doc-content h3 {
    margin-top: 10px;
    font-size: 20px;
}

.doc-content p,
.doc-content li {
    margin: 0;
    color: var(--ui-muted);
    font-size: 15px;
    line-height: 1.65;
}

.doc-content ul,
.doc-content ol {
    display: grid;
    gap: 8px;
    margin: 0;
    padding-left: 24px;
}

.doc-content strong {
    color: var(--ui-text);
}

.doc-content pre {
    overflow-x: auto;
    margin: 0;
    padding: 16px;
    color: var(--ui-text);
    background: var(--ui-surface-strong);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
}

.doc-content code {
    font-family: Consolas, "Courier New", monospace;
}

.doc-content p code,
.doc-content li code {
    padding: 2px 6px;
    background: var(--ui-surface-strong);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-sm);
}

.doc-content hr {
    width: 100%;
    margin: 6px 0;
    border: 0;
    border-top: 1px solid var(--ui-border);
}

.doc-footer {
    padding: 0 0 32px;
}

.doc-footer p {
    margin: 0;
    color: var(--ui-muted);
    font-size: 14px;
    line-height: 1.6;
}

.doc-footer p + p {
    margin-top: 6px;
}

.doc-footer a {
    color: var(--ui-primary-dark);
}

@media (max-width: 720px) {
    .doc-hero {
        padding: 24px 16px 18px;
    }

    .doc-hero-inner,
    .doc-shell,
    .doc-footer {
        width: calc(100vw - 24px);
    }

    .doc-shell {
        padding: 16px 0 28px;
    }

    .doc-panel {
        padding: 16px;
    }

    .doc-subtitle {
        font-size: 16px;
    }
}