:root {
    --rtg-theme-bg: #f8fafc;
    --rtg-card-bg: #ffffff;
    --rtg-text-primary: #0f172a;
    --rtg-text-secondary: #475569;
    --rtg-border: #cbd5e1;
    --rtg-gradient-accent: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    --rtg-terminal-bg: #0f172a;
    --rtg-terminal-text: #38bdf8;
    --rtg-success-tint: #dcfce7;
    --rtg-success-text: #166534;
    --rtg-warning-tint: #fef9c3;
    --rtg-warning-text: #854d0e;
    --rtg-error-tint: #fee2e2;
    --rtg-error-text: #991b1b;
}

/* Automatic Dark Mode Adjustments */
@media (prefers-color-scheme: dark) {
    :root {
        --rtg-theme-bg: #090d16;
        --rtg-card-bg: #111827;
        --rtg-text-primary: #f9fafb;
        --rtg-text-secondary: #9ca3af;
        --rtg-border: #374151;
        --rtg-terminal-bg: #030712;
        --rtg-terminal-text: #34d399;
        --rtg-success-tint: #064e3b;
        --rtg-success-text: #6ee7b7;
        --rtg-warning-tint: #78350f;
        --rtg-warning-text: #fde047;
        --rtg-error-tint: #7f1d1d;
        --rtg-error-text: #fca5a5;
    }
}

.rtg-dashboard {
    background-color: var(--rtg-theme-bg);
    color: var(--rtg-text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    padding: 24px;
    border-radius: 12px;
    max-width: 1300px;
    margin: 20px auto;
    box-sizing: border-box;
}

.rtg-dashboard *, .rtg-dashboard *::before, .rtg-dashboard *::after {
    box-sizing: border-box;
}

.rtg-brand-banner {
    background: var(--rtg-gradient-accent);
    color: #ffffff;
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 24px;
}

.rtg-brand-banner p {
    margin: 6px 0 0 0;
    font-size: 0.95rem;
    opacity: 0.9;
}

.rtg-brand-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.rtg-brand-title i {
    font-size: 2rem;
}

.rtg-brand-title h2 {
    margin: 0;
    font-size: 1.8rem;
    color: #ffffff !important;
    font-weight: 700;
}

.rtg-workspace-layout {
    display: block;
}

/* Desktop Grid Implementation Layer */
@media (min-width: 868px) {
    .rtg-workspace-layout {
        display: table;
        width: 100%;
        table-layout: fixed;
        border-collapse: separate;
        border-spacing: 20px 0px;
    }
    .rtg-panel-column {
        display: table-cell;
        width: 50%;
        vertical-align: top;
    }
}

.rtg-card {
    background-color: var(--rtg-card-bg);
    border: 1px solid var(--rtg-border);
    border-radius: 8px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
}

.rtg-card-header {
    background-color: rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid var(--rtg-border);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.rtg-card-header h3 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--rtg-text-primary);
}

.rtg-card-header i {
    color: #2563eb;
}

.rtg-flex-space-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.rtg-header-title-combo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.rtg-card-body {
    padding: 18px;
}

.rtg-card-body.rtg-no-padding {
    padding: 0;
}

.rtg-control-group {
    margin-bottom: 16px;
}

.rtg-control-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--rtg-text-secondary);
}

.rtg-control-group input[type="text"],
.rtg-control-group input[type="url"],
.rtg-control-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--rtg-border);
    border-radius: 6px;
    background-color: var(--rtg-theme-bg);
    color: var(--rtg-text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s ease;
}

.rtg-control-group input:focus,
.rtg-control-group select:focus {
    border-color: #2563eb;
}

.rtg-control-grid-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

@media (max-width: 480px) {
    .rtg-control-grid-two {
        grid-template-columns: 1fr;
    }
}

/* Rule Builder Directives Elements Framework Row Styler */
.rtg-rule-row {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    align-items: center;
    animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.rtg-rule-row select {
    padding: 8px;
    border: 1px solid var(--rtg-border);
    background-color: var(--rtg-theme-bg);
    color: var(--rtg-text-primary);
    border-radius: 4px;
    font-size: 0.85rem;
}

.rtg-rule-row .rtg-field-ua { width: 30%; }
.rtg-rule-row .rtg-field-type { width: 25%; }
.rtg-rule-row .rtg-field-path { 
    width: 40%;
    padding: 8px;
    border: 1px solid var(--rtg-border);
    background-color: var(--rtg-theme-bg);
    color: var(--rtg-text-primary);
    border-radius: 4px;
    font-size: 0.85rem;
}

.rtg-action-icon-btn {
    background: none;
    border: none;
    color: #ef4444;
    cursor: pointer;
    font-size: 1rem;
    padding: 6px;
    transition: color 0.1s ease;
}

.rtg-action-icon-btn:hover {
    color: #b91c1c;
}

/* Engine Dashboard Operation Form Button Mechanics Layout styles */
.rtg-form-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.rtg-primary-gradient-btn {
    background: var(--rtg-gradient-accent);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.15s ease;
}

.rtg-primary-gradient-btn:hover {
    opacity: 0.9;
}

.rtg-secondary-btn {
    background-color: transparent;
    border: 1px dashed #2563eb;
    color: #2563eb;
    padding: 8px 14px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.rtg-secondary-btn:hover {
    background-color: rgba(37, 99, 235, 0.05);
}

.rtg-flat-btn {
    background-color: transparent;
    border: 1px solid var(--rtg-border);
    color: var(--rtg-text-secondary);
    padding: 12px 18px;
    font-size: 0.95rem;
    border-radius: 6px;
    cursor: pointer;
}

.rtg-flat-btn:hover {
    background-color: rgba(0, 0, 0, 0.02);
    color: var(--rtg-text-primary);
}

/* Engine Integrity Elements Verification Badges CSS */
.rtg-validation-badge {
    padding: 12px 16px;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.badge-neutral { background-color: var(--rtg-theme-bg); border: 1px solid var(--rtg-border); color: var(--rtg-text-secondary); }
.badge-verified { background-color: var(--rtg-success-tint); color: var(--rtg-success-text); border: 1px solid currentColor; }
.badge-anomalies { background-color: var(--rtg-warning-tint); color: var(--rtg-warning-text); border: 1px solid currentColor; }

.rtg-error-terminal {
    background-color: #1e1e2f;
    color: #fca5a5;
    font-family: monospace;
    padding: 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: pre-line;
    border-left: 4px solid #ef4444;
}

/* Sandbox Live Execution View Textarea Fields */
#rtg-live-code-preview {
    width: 100%;
    height: 280px;
    background-color: var(--rtg-terminal-bg);
    color: var(--rtg-terminal-text);
    font-family: "Courier New", Courier, monospace;
    font-size: 0.88rem;
    padding: 16px;
    border: none;
    outline: none;
    resize: none;
    display: block;
}

.rtg-inline-counter {
    font-size: 0.75rem;
    background-color: var(--rtg-theme-bg);
    padding: 4px 8px;
    border-radius: 4px;
    color: var(--rtg-text-secondary);
    border: 1px solid var(--rtg-border);
}

.rtg-preview-actions-bar {
    background-color: rgba(0, 0, 0, 0.03);
    border-top: 1px solid var(--rtg-border);
    padding: 8px 12px;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.rtg-action-bar-btn {
    background-color: var(--rtg-card-bg);
    border: 1px solid var(--rtg-border);
    color: var(--rtg-text-primary);
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.rtg-action-bar-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
}

/* Recommendation Item Pipeline Styling Elements */
.rtg-recommendations-pipeline {
    list-style: none;
    padding: 0;
    margin: 0;
}

.rtg-recommendations-pipeline li {
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 0.88rem;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.4;
}

.rtg-recommendations-pipeline li i { margin-top: 2px; }
.rtg-recommendations-pipeline li.item-neutral { background-color: var(--rtg-theme-bg); color: var(--rtg-text-secondary); }
.rtg-recommendations-pipeline li.item-success { background-color: var(--rtg-success-tint); color: var(--rtg-success-text); }
.rtg-recommendations-pipeline li.item-warning { background-color: var(--rtg-warning-tint); color: var(--rtg-warning-text); }
.rtg-recommendations-pipeline li.item-danger { background-color: var(--rtg-error-tint); color: var(--rtg-error-text); }