:root {
    --primary: #bd5d38;
    --dark: #212529;
    --sidebar-width: 260px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Muli, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    color: var(--dark);
    background: #fff;
    display: flex;
    min-height: 100vh;
}

.sidebar {
    background: var(--dark);
    color: #fff;
    width: var(--sidebar-width);
    flex-shrink: 0;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
}

.sidebar h1 {
    font-family: "Saira Extra Condensed", serif;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
    line-height: 1.1;
    color: #fff;
}

.sidebar h1 span {
    color: var(--primary);
}

.sidebar .subtitle {
    font-size: 0.8rem;
    color: #adb5bd;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar nav a {
    display: block;
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    padding: 0.35rem 0;
    font-size: 0.9rem;
    transition: color 0.15s;
}

.sidebar nav a:hover {
    color: #fff;
}

.sidebar .back-link {
    margin-top: auto;
    padding-top: 1.5rem;
}

.sidebar .back-link a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.85rem;
}

.sidebar .back-link a:hover {
    text-decoration: underline;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 3rem;
    max-width: 860px;
}

.page-header {
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
    margin-bottom: 2.5rem;
}

.page-header h2 {
    font-family: "Saira Extra Condensed", serif;
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
}

.page-header p {
    margin: 0;
    color: #6c757d;
    font-size: 0.95rem;
}

.key-card {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.key-card h3 {
    font-family: "Saira Extra Condensed", serif;
    font-size: 1.4rem;
    color: var(--primary);
    margin: 0 0 1rem;
    font-weight: 700;
}

.key-card pre {
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    padding: 1rem;
    overflow-x: auto;
    font-size: 0.78rem;
    line-height: 1.5;
    margin: 0;
    color: #212529;
    font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
        "Courier New", monospace;
}

.footer {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid #dee2e6;
    font-size: 0.85rem;
    color: #6c757d;
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    .sidebar {
        position: relative;
        width: 100%;
        bottom: auto;
        padding: 1.5rem;
    }

    .main-content {
        margin-left: 0;
        padding: 1.5rem;
    }
}