:root {
    --color-background: #1a1a1a;
    --color-surface: #2d2d2d;
    --color-surface-light: #3d3d3d;
    --color-border: #4d4d4d;
    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-primary: #666666;
    --color-success: #4caf50;
    --color-error: #f44336;
    --color-warning: #ff9800;
    --color-info: #2196f3;
}

body {
    background-color: var(--color-background);
    color: var(--color-text-primary);
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    font-size: 0.9rem;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

.navbar-dark {
    background-color: var(--color-surface) !important;
    border-bottom: 1px solid var(--color-border);
}

.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.card-header {
    background-color: var(--color-surface-light);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.table {
    color: var(--color-text-primary);
}

.table thead {
    background-color: var(--color-surface-light);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.02);
}

.table-hover tbody tr:hover {
    background-color: var(--color-surface-light);
}

.form-control {
    background-color: var(--color-surface-light);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
}

.form-control:focus {
    background-color: var(--color-surface-light);
    color: var(--color-text-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(102, 102, 102, 0.25);
}

.form-control::placeholder {
    color: var(--color-text-secondary);
}

.form-label {
    color: var(--color-text-primary);
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
}

.btn-primary:hover {
    background-color: var(--color-surface-light);
    border-color: var(--color-border);
}

.btn-secondary {
    background-color: var(--color-surface-light);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    background-color: var(--color-border);
}

.alert {
    border-radius: 4px;
}

.alert-info {
    background-color: rgba(33, 150, 243, 0.1);
    border-color: var(--color-info);
    color: var(--color-info);
}

.alert-success {
    background-color: rgba(76, 175, 80, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-danger {
    background-color: rgba(244, 67, 54, 0.1);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-warning {
    background-color: rgba(255, 152, 0, 0.1);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.badge {
    font-size: 0.85em;
}

.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.bg-light {
    background-color: var(--color-surface-light) !important;
}

.text-muted {
    color: var(--color-text-secondary) !important;
}

.log-entry {
    padding: 2px 0;
    font-size: 12px;
}

@keyframes stat-flash-anim {
    0%   { opacity: 1; transform: scale(1); }
    30%  { opacity: 1; transform: scale(1.18); }
    100% { opacity: 1; transform: scale(1); }
}
.stat-flash {
    display: inline-block;
    animation: stat-flash-anim 0.35s ease-out;
}

.progress {
    background-color: var(--color-surface-light);
}

code {
    color: var(--color-info);
    background-color: var(--color-surface-light);
    padding: 2px 6px;
    border-radius: 3px;
}

.list-group-item {
    background-color: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

.list-group-item:hover {
    background-color: var(--color-surface-light);
}

.text-danger {
    color: var(--color-error) !important;
}

.text-success {
    color: var(--color-success) !important;
}

.text-warning {
    color: var(--color-warning) !important;
}

.text-info {
    color: var(--color-info) !important;
}

html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 15px;
    }
}

/* Scale down all heading levels to feel proportional */
h1, .h1 { font-size: 1.5rem;  font-weight: 600; }
h2, .h2 { font-size: 1.2rem;  font-weight: 600; }
h3, .h3 { font-size: 1.05rem; font-weight: 600; }
h4, .h4 { font-size: 0.95rem; font-weight: 600; }
h5, .h5 { font-size: 0.875rem; font-weight: 600; }
h6, .h6 { font-size: 0.8rem;  font-weight: 600; }

/* display-* helpers used on the home hero */
.display-4 { font-size: 2rem !important; }
.display-5 { font-size: 1.75rem !important; }
.display-6 { font-size: 1.5rem !important; }

/* Tighter card chrome */
.card-header {
    padding: 0.5rem 0.75rem;
}

.card-body {
    padding: 0.75rem;
}

/* Compact form controls */
.form-control,
.form-select {
    font-size: 0.875rem;
    padding: 0.3rem 0.5rem;
}

.btn {
    font-size: 0.875rem;
    padding: 0.3rem 0.65rem;
}

/* Tighter table cells */
.table td, .table th {
    padding: 0.3rem 0.5rem;
    font-size: 0.875rem;
}

/* Numeric columns: tabular figures so digits line up cleanly */
.table td.text-end, .table th.text-end {
    font-variant-numeric: tabular-nums;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}