/* Lab layout only. Colours, cards, pills, switches and buttons come from styles.css. */
.testing-features-page [hidden] { display: none !important; }

.testing-features-page .lab-intro { margin: 0 0 20px; }

.testing-features-page .lab-layout {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

/* The main app's pill nav, stacked on desktop. */
.testing-features-page .lab-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    margin: 0;
    position: sticky;
    top: 16px;
}

.testing-features-page .lab-nav .product-mode-btn {
    text-align: left;
    min-height: 40px;
}

.testing-features-page .lab-nav .product-mode-btn[aria-selected="true"] {
    background: var(--accent);
    border-color: var(--accent);
    color: #000;
}

.testing-features-page .lab-panel { min-width: 0; }
.testing-features-page .lab-card { min-width: 0; }
.testing-features-page .lab-card h4 { color: var(--accent); font-size: 0.95rem; margin: 20px 0 10px; }
.testing-features-page .lab-note { margin: 0 0 16px; }

/* Field labels match the main app's filter labels. */
.testing-features-page .lab-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
    margin: 16px 0;
}

.testing-features-page .lab-fields label,
.testing-features-page form > label,
.testing-features-page .lab-card > label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.testing-features-page .lab-field-wide { grid-column: 1 / -1; }

.testing-features-page input[type="number"],
.testing-features-page input[type="date"],
.testing-features-page input[type="search"],
.testing-features-page input:not([type]),
.testing-features-page select[multiple] {
    width: 100%;
    box-sizing: border-box;
    min-height: 42px;
    padding: 10px 12px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-main);
    font: inherit;
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: normal;
    text-transform: none;
}

.testing-features-page input:focus,
.testing-features-page select:focus { outline: none; border-color: var(--accent); }

.testing-features-page .lab-fields .filter-select { width: 100%; min-width: 0; letter-spacing: normal; text-transform: none; font-weight: 400; }
.testing-features-page select[multiple] { min-height: 160px; }
.testing-features-page select[multiple] optgroup { color: var(--accent); }
.testing-features-page select[multiple] option { color: var(--text-main); padding: 4px 8px; }
.testing-features-page input[type="range"] { width: 100%; accent-color: var(--accent); }
.testing-features-page .lab-factory-boost-label { flex-direction: row; gap: 6px; }

.testing-features-page fieldset {
    margin: 16px 0;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-color);
}

.testing-features-page legend {
    padding: 0 8px;
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Checkbox groups built by the lab: rows tall enough to tap. */
.testing-features-page .lab-toggles { display: flex; flex-wrap: wrap; gap: 4px 20px; }
.testing-features-page .lab-toggles label {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 36px;
    color: var(--text-main);
    font-size: 0.9rem;
    cursor: pointer;
}
.testing-features-page .lab-toggles input { accent-color: var(--accent); width: 16px; height: 16px; }

/* Release switches reuse the Distribution Calculator switches. */
.testing-features-page .lab-switches { justify-content: flex-start; flex-wrap: wrap; gap: 16px 24px; margin: 8px 0 16px; }

.testing-features-page .product-mode-nav { margin: 0 0 8px; }

.testing-features-page .lab-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 16px 0 0; }
.testing-features-page .lab-actions .analyze-btn { flex: 1 1 220px; }
.testing-features-page .lab-secondary { margin-top: 0; }

/* Results sit inside the same card, under a rule. */
.testing-features-page .lab-output {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    color: var(--text-main);
    line-height: 1.6;
    overflow-wrap: anywhere;
}
.testing-features-page .lab-output p { margin: 4px 0 12px; }
.testing-features-page .lab-output .lab-note { color: var(--text-muted); font-size: 0.9rem; }

.testing-features-page .lab-positive { color: var(--success); }
.testing-features-page .lab-negative { color: var(--danger); }
.testing-features-page .lab-commercial { color: var(--ha-commercial); }
.testing-features-page .lab-artistic { color: var(--ha-artistic); }
.testing-features-page .lab-error { color: var(--danger); min-height: 24px; }

.testing-features-page .lab-callout {
    margin: 0 0 16px;
    padding: 14px 16px;
    border: 1px solid var(--accent);
    border-left-width: 4px;
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    color: var(--text-main);
    line-height: 1.5;
}
.testing-features-page .lab-callout strong { display: block; color: var(--accent); margin-bottom: 4px; }

.testing-features-page .lab-table-wrap { overflow-x: auto; }
.testing-features-page .lab-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 0.9rem; }
.testing-features-page .lab-table :is(th, td) { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.testing-features-page .lab-table th { color: var(--text-muted); font-size: 0.72rem; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; white-space: nowrap; }

.testing-features-page .lab-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; margin: 0 0 16px; }
.testing-features-page .lab-mini-card {
    min-width: 0;
    padding: 14px;
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.testing-features-page .lab-mini-card h4 { margin-top: 0; }
.testing-features-page .lab-mini-card strong { color: var(--text-main); overflow-wrap: anywhere; }

/* Element Preservation: compact top-5 cards and the Top 5 marker in the table. */
.testing-features-page .lab-preservation-card p { margin: 4px 0; }
.testing-features-page .lab-top-mark { color: var(--accent); font-weight: 800; white-space: nowrap; }

.testing-features-page .lab-genre-name {
    display: inline-block;
    padding-left: 8px;
    border-left: 3px solid var(--tag-color, var(--border));
    color: var(--text-main);
}

.testing-features-page .lab-pair-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 28px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.testing-features-page .lab-pair-stat { display: flex; align-items: baseline; gap: 8px; color: var(--text-muted); font-size: 0.9rem; }
.testing-features-page .lab-pair-stat strong { font-size: 1.1rem; }

.testing-features-page #testing-features-footer { color: var(--text-muted); }

@media (max-width: 760px) {
    .testing-features-page .lab-layout { grid-template-columns: minmax(0, 1fr); gap: 16px; }
    .testing-features-page .lab-nav { flex-direction: row; flex-wrap: wrap; position: static; }
    .testing-features-page .lab-nav .product-mode-btn { flex: 1 1 calc(50% - 4px); text-align: center; }
    .testing-features-page .lab-fields { grid-template-columns: minmax(0, 1fr); }
}