/* Classifier Comparison Lab — tool-specific styles
   Inherits from shared/css/main.css */

/* ── Algorithm Selection Cards ────────────────────────────────── */
.algo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}

.algo-card {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    border: 2px solid var(--app-border);
    border-radius: 8px;
    background: var(--app-card-bg);
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
    overflow: hidden;
    min-width: 0;
}

.algo-card:hover {
    border-color: var(--app-accent);
}

.algo-card.selected {
    border-color: var(--app-accent);
    box-shadow: 0 0 0 3px rgba(42, 125, 225, 0.15);
    background: #f0f7ff;
}

.algo-card input[type="checkbox"] {
    margin-top: 0.2rem;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    accent-color: var(--app-accent);
}

.algo-card__info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.algo-card__name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--app-text);
    margin-bottom: 0.25rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.algo-card__desc {
    font-size: 0.82rem;
    color: var(--app-muted);
    line-height: 1.35;
}

.algo-card__params summary {
    font-size: 0.8rem;
    color: var(--app-accent);
    cursor: pointer;
    margin-top: 0.4rem;
    -webkit-user-select: none;
    user-select: none;
    padding: 2px 0;
}

.algo-card__params-body {
    padding-top: 0.35rem;
}

.param-slider-group {
    margin-top: 0.5rem;
}

.param-slider-header {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.82rem;
    color: var(--app-text, #334155);
    margin-bottom: 2px;
}

.param-slider-header label {
    font-weight: 500;
}

.param-slider-value {
    margin-left: auto;
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--app-accent, #6366f1);
    min-width: 2.5em;
    text-align: right;
}

.param-slider {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--app-border, #e2e8f0);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.param-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--app-accent, #6366f1);
    cursor: pointer;
}

.param-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--app-accent, #6366f1);
    border: none;
    cursor: pointer;
}

.param-reset {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 2px 10px;
    font-size: 0.75rem;
    color: var(--app-muted, #94a3b8);
    background: none;
    border: 1px solid var(--app-border, #e2e8f0);
    border-radius: 4px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.param-reset:hover {
    color: var(--app-accent, #6366f1);
    border-color: var(--app-accent, #6366f1);
}

.algo-card__params label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.35rem;
    font-size: 0.82rem;
    flex-wrap: wrap;
}

.algo-card__params input[type="number"],
.algo-card__params select {
    width: 70px;
    padding: 2px 6px;
    border: 1px solid var(--app-border);
    border-radius: 4px;
    font-size: 0.82rem;
}

.algo-bulk-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.algo-bulk-actions button {
    font-size: 0.82rem;
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--app-border);
    border-radius: 4px;
    background: var(--app-card-bg);
    color: var(--app-muted);
    cursor: pointer;
}

.algo-bulk-actions button:hover {
    border-color: var(--app-accent);
    color: var(--app-accent);
}

/* ── Comparison Tables ────────────────────────────────────────── */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    margin: 1rem 0;
}

.comparison-table th,
.comparison-table td {
    padding: 0.6rem 0.75rem;
    text-align: center;
    border-bottom: 1px solid var(--app-border);
}

.comparison-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--app-text);
    position: sticky;
    top: 0;
}

.comparison-table th.metric-col {
    text-align: left;
    min-width: 165px;
}

.comparison-table td.metric-col {
    text-align: left;
    font-weight: 500;
    color: var(--app-text);
}

.comparison-table .best-metric {
    background: #dcfce7;
    font-weight: 700;
    color: #166534;
}

.comparison-table .worst-metric {
    background: #fee2e2;
    color: #991b1b;
}

/* ── Overfitting Gap Indicators ───────────────────────────────── */
.gap-indicator {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 600;
}

.gap-indicator.gap-low {
    background: #dcfce7;
    color: #166534;
}

.gap-indicator.gap-medium {
    background: #fef3c7;
    color: #92400e;
}

.gap-indicator.gap-high {
    background: #fee2e2;
    color: #991b1b;
}

/* ── Confusion Matrix Mini Grid ───────────────────────────────── */
.cm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
    margin: 1rem 0;
}

.cm-card {
    background: var(--app-card-bg);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 1rem;
}

.cm-card__title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cm-card__swatch {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.mini-cm {
    display: grid;
    grid-template-columns: auto 1fr 1fr;
    grid-template-rows: auto 1fr 1fr;
    gap: 2px;
    font-size: 0.85rem;
    text-align: center;
    max-width: 220px;
}

.mini-cm .cm-header {
    font-weight: 600;
    color: var(--app-muted);
    padding: 0.35rem;
    font-size: 0.75rem;
}

.mini-cm .cm-corner {
    background: transparent;
}

.mini-cm .cm-cell {
    padding: 0.5rem 0.35rem;
    border-radius: 4px;
    font-weight: 600;
}

.mini-cm .cm-tp {
    background: #dcfce7;
    color: #166534;
}

.mini-cm .cm-tn {
    background: #dbeafe;
    color: #1e40af;
}

.mini-cm .cm-fp {
    background: #fee2e2;
    color: #991b1b;
}

.mini-cm .cm-fn {
    background: #fef3c7;
    color: #92400e;
}

.cm-card__metrics {
    margin-top: 0.5rem;
    font-size: 0.82rem;
    color: var(--app-muted);
    line-height: 1.6;
}

/* ── Confusion Matrix Comparison Table ─────────────────────────── */
.cm-comparison-table .cm-tp {
    background: #dcfce7;
    color: #166534;
    font-weight: 600;
}

.cm-comparison-table .cm-tn {
    background: #dbeafe;
    color: #1e40af;
    font-weight: 600;
}

.cm-comparison-table .cm-fp {
    background: #fee2e2;
    color: #991b1b;
    font-weight: 600;
}

.cm-comparison-table .cm-fn {
    background: #fef3c7;
    color: #92400e;
    font-weight: 600;
}

.cm-comparison-table .cm-total-row td {
    border-top: 2px solid var(--app-border);
    font-weight: 600;
    color: var(--app-muted);
}

/* ── Configuration Controls ───────────────────────────────────── */
.config-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: flex-end;
    margin: 1rem 0;
}

.config-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.config-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--app-text);
}

.config-group select,
.config-group input[type="number"] {
    padding: 0.45rem 0.6rem;
    border: 1px solid var(--app-border);
    border-radius: 6px;
    font-size: 0.9rem;
    background: var(--app-card-bg);
}

.feature-checkbox-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.5rem 0;
}

.feature-checkbox-grid label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--app-border);
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color 0.15s;
}

.feature-checkbox-grid label:hover {
    border-color: var(--app-accent);
}

.feature-checkbox-grid label.checked {
    border-color: var(--app-accent);
    background: #f0f7ff;
}

.feature-checkbox-grid input[type="checkbox"] {
    accent-color: var(--app-accent);
}

/* ── Split Slider ─────────────────────────────────────────────── */
.split-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.split-control input[type="range"] {
    flex: 1;
    max-width: 200px;
    accent-color: var(--app-accent);
}

.split-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--app-accent);
    min-width: 60px;
}

/* ── Results Phase Tabs ───────────────────────────────────────── */
.phase-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--app-border);
}

.phase-tab {
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--app-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, border-color 0.15s;
}

/* ── Insight Bullets ────────────────────────────────────────── */
.insight-bullet {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    padding: 0.85rem 1rem;
    border-radius: 6px;
    background: var(--app-card-bg);
    border-left: 4px solid var(--app-accent, #3b82f6);
    margin-bottom: 0.65rem;
}

.insight-bullet__icon {
    font-size: 1.3rem;
    flex-shrink: 0;
    line-height: 1.4;
}

.insight-bullet__body {
    min-width: 0;
}

.insight-bullet__title {
    display: block;
    margin-bottom: 0.2rem;
    color: var(--app-heading, #1e293b);
    font-size: 0.95rem;
}

.insight-bullet__body p {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.55;
    color: var(--app-text, #475569);
}

.phase-tab:hover {
    color: var(--app-text);
}

.phase-tab.active {
    color: var(--app-accent);
    border-bottom-color: var(--app-accent);
}

/* ── Decision Boundary ────────────────────────────────────────── */
.boundary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.boundary-card {
    border: 1px solid var(--app-border);
    border-radius: 8px;
    overflow: hidden;
}

.boundary-card__title {
    padding: 0.5rem 0.75rem;
    font-weight: 600;
    font-size: 0.9rem;
    background: #f8fafc;
    border-bottom: 1px solid var(--app-border);
}

/* ── Metric Info Tooltips ──────────────────────────────────────── */
.metric-info {
    position: relative;
    display: inline-block;
    margin-left: 4px;
    vertical-align: middle;
    cursor: help;
}

.metric-info__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 14px;
    line-height: 1;
    color: var(--app-muted, #94a3b8);
    transition: color 0.15s;
}

.metric-info:hover .metric-info__icon,
.metric-info:focus .metric-info__icon {
    color: var(--app-accent, #6366f1);
}

.metric-info__tip {
    display: none;
    position: absolute;
    left: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(-50%);
    width: 230px;
    padding: 8px 10px;
    border-radius: 6px;
    background: #1e293b;
    color: #f1f5f9;
    font-size: 0.78rem;
    font-weight: 400;
    line-height: 1.45;
    text-align: left;
    white-space: normal;
    box-shadow: 0 4px 12px rgba(0,0,0,.18);
    z-index: 50;
    pointer-events: none;
}

.metric-info__tip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1e293b;
}

.metric-info:hover .metric-info__tip,
.metric-info:focus .metric-info__tip {
    display: block;
}

/* ── Primary Metric Rows ──────────────────────────────────────── */
.comparison-table .metric-row--primary td {
    font-size: 1.0rem;
}

.comparison-table .metric-row--primary td.metric-col {
    font-size: 1.0rem;
}

.comparison-table tr:not(.metric-row--primary) td {
    font-size: 0.82rem;
    color: var(--app-muted, #64748b);
}

.comparison-table tr:not(.metric-row--primary) td.metric-col {
    font-size: 0.85rem;
}

.comparison-table tr:not(.metric-row--primary) td.best-metric {
    color: #166534;
}

.comparison-table tr:not(.metric-row--primary) td.worst-metric {
    color: #991b1b;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
    .algo-grid {
        grid-template-columns: 1fr;
    }
    .cm-grid {
        grid-template-columns: 1fr;
    }
    .boundary-grid {
        grid-template-columns: 1fr;
    }
    .config-row {
        flex-direction: column;
    }
    .comparison-table {
        font-size: 0.8rem;
    }
    .comparison-table th,
    .comparison-table td {
        padding: 0.4rem;
    }
}

@media (max-width: 480px) {
    .algo-card {
        padding: 0.75rem;
    }
    .phase-tab {
        padding: 0.5rem 0.75rem;
        font-size: 0.82rem;
    }
}