/* ============================================================
   Sidebar Navigation
   Per design guidelines: 220px expanded, 56px collapsed
   ============================================================ */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 220px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-default);
    z-index: 50;
    display: flex;
    flex-direction: column;
    padding: 0;
    transition: width var(--duration-sidebar) var(--ease-in-out);
}

/* --- Header / Logo --- */
.sidebar-header {
    height: 48px;
    padding: 0 12px;
    border-bottom: 1px solid var(--border-default);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

.sidebar-logo-mark {
    width: 28px;
    height: 28px;
    color: var(--accent);
    flex-shrink: 0;
}

.sidebar-wordmark {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.04em;
}

.sidebar-logo-sub {
    display: none; /* removed in new design */
}

/* --- Navigation Items --- */
.sidebar-nav {
    flex: 1;
    padding: var(--space-sm) 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow-y: auto;
}

.nav-section-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: var(--space-lg) var(--space-lg) var(--space-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin: 0 8px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    border-left: 3px solid transparent;
    transition: all var(--duration-fast) var(--ease-out);
}

.nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-subtle);
}

.nav-item.active {
    color: var(--accent);
    border-left-color: var(--accent);
    background: var(--accent-dim);
}

.nav-item svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
    overflow: visible;
}

.nav-item.admin-only {
    display: none;
}

/* --- Footer --- */
.sidebar-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-default);
    flex-shrink: 0;
}

.sidebar-user {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-default);
}

.sidebar-username {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-role {
    font-size: 11px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 500;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    font-family: var(--font-body);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: color var(--duration-fast) var(--ease-out);
}

.btn-logout:hover {
    color: var(--status-red);
}

/* --- System Health (sidebar footer) --- */
.tunnel-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 12px;
    position: relative;
    cursor: default;
}

.tunnel-status-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.tunnel-status-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Health tooltip */
.health-tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius);
    padding: var(--space-sm) var(--space-md);
    font-size: 12px;
    white-space: nowrap;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.tunnel-status:hover .health-tooltip {
    display: block;
}

.health-row {
    padding: 2px 0;
    color: var(--text-secondary);
}

.h-ok {
    color: var(--status-green);
    font-weight: 700;
    margin-right: 6px;
}

.h-fail {
    color: var(--status-red);
    font-weight: 700;
    margin-right: 6px;
}

/* --- Mobile sidebar toggle --- */
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    padding: 0;
    flex-shrink: 0;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-subtle);
}

.sidebar-toggle svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Mobile overlay behind sidebar */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 45;
}

@media (max-width: 768px) {
    .sidebar-toggle { display: flex; }

    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--duration-sidebar) var(--ease-in-out);
        z-index: 60;
        width: 220px;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar.open + .sidebar-overlay,
    .sidebar-overlay.open {
        display: block;
    }

    /* Show all sidebar content when open */
    .sidebar.open .nav-item span,
    .sidebar.open .sidebar-logo-sub,
    .sidebar.open .sidebar-wordmark,
    .sidebar.open .tunnel-status-label,
    .sidebar.open .tunnel-status-sub,
    .sidebar.open .sidebar-user,
    .sidebar.open .nav-section-label { display: unset; }

    .sidebar.open .nav-item { justify-content: flex-start; margin: 0 8px; border-left: 3px solid transparent; }
    .sidebar.open .sidebar-header { text-align: left; padding: 0 12px; }

    .topbar { left: 0; }
    .main { margin-left: 0; }
}

/* Inline status badge (used on pages next to subtitle) */
.caddy-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: var(--space-md);
    font-size: 12px;
    vertical-align: middle;
}