:root {
    --bg-system-tint: #fffcf4;
    --bg-diagram-dark: #0f172a;
    --accent-red: #c2410c;
    --text-primary: #1e293b;
    --text-muted: #64748b;
    --border-light: #e2e8f0;
    --notification-yellow: #fef3c7;
    --notification-text: #b45309;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-system-tint);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    font-size: 14px;
}

.system-notification {
    background-color: var(--notification-yellow);
    color: var(--notification-text);
    text-align: center;
    padding: 8px 10px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    border-bottom: 1px solid rgba(180, 83, 9, 0.1);
}

.wrapper {
    max-width: 850px;
    margin: 0 auto;
    padding: 40px 20px;
}

.nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--text-primary);
    padding-bottom: 12px;
    margin-bottom: 35px;
}

.nav-logo {
    font-weight: 800;
    letter-spacing: 0.5px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    margin-left: 15px;
    font-size: 0.85rem;
}

.nav-links .active-nav-btn {
    border-bottom: 2px solid var(--text-primary);
    padding-bottom: 2px;
}

.main-header {
    margin-bottom: 40px;
}

.system-id {
    color: var(--accent-red);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

h1 {
    font-size: 1.85rem;
    font-weight: 800;
    margin: 0 0 15px 0;
    color: #0f172a;
}

.subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

.content-section {
    margin-top: 45px;
}

h2 {
    font-size: 1rem;
    color: var(--accent-red);
    font-weight: 800;
    letter-spacing: 0.5px;
    margin: 0 0 10px 0;
    border-bottom: 1px solid var(--accent-red);
    padding-bottom: 8px;
}

.section-desc {
    color: var(--text-muted);
    margin: 0 0 20px 0;
    font-size: 0.85rem;
}

.diagram-container {
    background-color: var(--bg-diagram-dark);
    border-radius: 6px;
    padding: 30px;
    color: #ffffff;
}

.diagram-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.block {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px dashed rgba(255, 255, 255, 0.2);
    padding: 20px;
    text-align: center;
    font-family: monospace;
    font-size: 0.8rem;
    border-radius: 4px;
}

.diagram-notes {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-family: monospace;
    font-size: 0.8rem;
    color: #94a3b8;
}

.note-bullet {
    margin-bottom: 6px;
}

.diagnostics-section {
    margin-top: 30px;
    border-left: 3px solid #f59e0b;
    padding-left: 15px;
}

.diagnostics-section h3 {
    font-size: 0.85rem;
    color: #b45309;
    margin: 0 0 10px 0;
}

.diagnostics-section ul {
    margin: 0;
    padding-left: 15px;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.diagnostics-section li {
    margin-bottom: 12px;
    line-height: 1.5;
}

.bom-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
    font-size: 0.85rem;
}

.bom-table th, .bom-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.bom-table th {
    color: var(--text-muted);
    font-weight: 600;
}

.bom-table tbody tr:hover {
    background-color: rgba(30, 41, 59, 0.02);
}

.total-row {
    font-weight: 700;
    background-color: rgba(194, 65, 12, 0.03);
    color: var(--accent-red);
}

.code-box {
    background-color: #020617;
    border-radius: 6px;
    overflow: hidden;
    margin-top: 15px;
}

.code-header {
    background-color: #0f172a;
    padding: 10px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #94a3b8;
    font-family: monospace;
    font-size: 0.8rem;
}

.copy-btn {
    background: transparent;
    border: 1px solid #334155;
    color: #94a3b8;
    padding: 3px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
}

.copy-btn:hover {
    background-color: #1e293b;
    color: #ffffff;
}

.code-body pre {
    margin: 0;
    padding: 15px;
    overflow-x: auto;
}

.code-body code {
    font-family: Consolas, Monaco, "Andale Mono", monospace;
    color: #38bdf8;
    font-size: 0.85rem;
}

.footer-divider {
    border: 0;
    border-top: 1px solid var(--border-light);
    margin-top: 60px;
    margin-bottom: 30px;
}

.system-footer {
    text-align: center;
    color: #94a3b8;
    font-size: 0.8rem;
    margin-bottom: 20px;
    letter-spacing: 0.2px;
}