/* feedback-network/styles.css — layout & tool-specific overrides (base: ../shared.css) */

.tool-page {
    padding-top: var(--ai-space-4);
    padding-bottom: var(--ai-space-8);
}

.charts-container {
    display: grid;
    grid-template-columns: 220px 1fr 1fr 220px;
    gap: var(--ai-space-4);
    max-width: 1800px;
    margin-left: auto;
    margin-right: auto;
    align-items: start;
}

.button-container {
    grid-column: 2 / span 2;
    text-align: center;
    padding: 10px 0;
}

.comp-presets {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 10px;
    width: 100%;
}

.comp-preset-btn {
    padding: 6px 10px;
    font-size: 0.78rem;
    font-weight: 600;
    border: 2px solid #e2e8f0;
    border-radius: var(--ai-radius-md);
    background: #f8fafc;
    color: #334155;
    cursor: pointer;
    text-align: left;
}

.comp-preset-btn[data-comp-preset="early"] { border-color: #fca5a5; }
.comp-preset-btn[data-comp-preset="target"] { border-color: #86efac; }
.comp-preset-btn[data-comp-preset="late"] { border-color: #fdba74; }

.comp-preset-btn.active { color: #fff; border-color: transparent; }
.comp-preset-btn[data-comp-preset="early"].active { background: #dc2626; }
.comp-preset-btn[data-comp-preset="target"].active { background: #16a34a; }
.comp-preset-btn[data-comp-preset="late"].active { background: #ea580c; }

.side-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 5px;
    gap: 10px;
}

.side-panel img {
    max-width: 100%;
    height: auto;
    border-radius: var(--ai-radius-lg);
}

.feedback-image-container {
    position: relative;
    width: 100%;
}

.feedback-image-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--ai-radius-lg);
}

.highlight-overlay {
    position: absolute;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.highlight-cff {
    top: 22%;
    right: 2%;
    width: 32%;
    height: 22%;
    background: rgba(34, 197, 94, 0.25);
    border: 2px solid rgba(34, 197, 94, 0.8);
    box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.highlight-cflt {
    top: 54%;
    right: 2%;
    width: 32%;
    height: 22%;
    background: rgba(239, 68, 68, 0.25);
    border: 2px solid rgba(239, 68, 68, 0.8);
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
}

.highlight-overlay.active {
    opacity: 1;
}

.side-panel .input-group {
    width: 100%;
    background-color: var(--ai-bg-input);
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-md);
    padding: var(--ai-space-2);
    margin-top: 0;
}

.chart-group {
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-md);
    padding: var(--ai-space-3);
    background-color: var(--ai-bg-input);
}

.input-group {
    background-color: var(--ai-bg-input);
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-md);
    padding: var(--ai-space-2);
}

.input-group .input-row {
    display: flex;
    align-items: center;
    margin-bottom: 3px;
    flex-wrap: wrap;
}

.input-group label {
    font-size: 11px;
    margin-right: 4px;
    white-space: nowrap;
    width: 85px;
}

.input-group input[type="number"] {
    font-size: 11px;
    padding: 3px;
    width: 45px;
}

.input-group input[type="range"] {
    width: 80px;
    margin-left: 4px;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: #ddd;
    border-radius: 4px;
    outline: none;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--ai-blue-600);
    border-radius: 50%;
    cursor: pointer;
}

.input-group input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--ai-blue-800);
}

.chart-group .loop-gain-metrics {
    background-color: var(--ai-bg-input);
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-md);
    padding: var(--ai-space-2);
    margin-top: var(--ai-space-2);
}

.chart-group .loop-gain-metrics .metric-row {
    display: flex;
    align-items: center;
    margin-bottom: 3px;
}

.chart-group .loop-gain-metrics label {
    font-size: 12px;
    margin-right: 5px;
    white-space: nowrap;
    width: 120px;
}

.chart-group .loop-gain-metrics .output {
    font-size: 12px;
    color: var(--ai-blue-600);
    font-weight: 600;
}

canvas {
    max-width: 100%;
    margin-top: 10px;
    width: 100%;
    height: auto;
    min-height: 300px;
}

.chart-coordinates {
    font-size: 12px;
    font-family: var(--ai-font-mono);
    color: var(--ai-gray-600);
    text-align: center;
    padding: 4px 8px;
    background-color: var(--ai-gray-100);
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-sm);
    margin-top: 4px;
}

.bw-readout {
    font-size: 12px;
    font-family: var(--ai-font-mono);
    color: var(--ai-blue-700);
    font-weight: 600;
    text-align: center;
    padding: 4px 8px;
    background-color: #e8f0fe;
    border: 1px solid #a8c7fa;
    border-radius: var(--ai-radius-sm);
    margin-top: 3px;
}

.loop-phase-mode {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 8px 0 4px;
    justify-content: center;
}

.loop-phase-btn {
    padding: 5px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 2px solid #e2e8f0;
    border-radius: var(--ai-radius-md);
    background: #f8fafc;
    color: #334155;
    cursor: pointer;
}

.loop-phase-btn[data-loop-phase-mode="standard"] { border-color: #93c5fd; }
.loop-phase-btn[data-loop-phase-mode="folded"] { border-color: #c4b5fd; }

.loop-phase-btn.active { color: #fff; border-color: transparent; }
.loop-phase-btn[data-loop-phase-mode="standard"].active { background: #2563eb; }
.loop-phase-btn[data-loop-phase-mode="folded"].active { background: #7c3aed; }

.loop-math {
    font-size: 11px;
    font-family: var(--ai-font-mono);
    color: var(--ai-blue-700);
    text-align: center;
    padding: 6px 8px;
    background-color: #e8f0fe;
    border: 1px solid #a8c7fa;
    border-radius: var(--ai-radius-sm);
    margin-top: 6px;
}

.chart-header {
    margin-bottom: 5px;
}

.chart-header h4 {
    margin: 0 0 4px 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ai-blue-800);
    padding: 5px 10px;
}

.chart-header .transfer-function,
.calculator .transfer-function {
    font-size: 0.95rem;
    padding: 6px 10px;
    background-color: var(--ai-bg-card);
    border: 1px solid var(--ai-gray-200);
    border-radius: var(--ai-radius-sm);
    text-align: left;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.limits-and-help {
    display: grid;
    grid-template-columns: 38% 1fr;
    gap: var(--ai-space-6);
    max-width: 1800px;
    margin: var(--ai-space-6) auto 0;
    align-items: start;
}

.limits-and-help .limits-container {
    max-width: none;
    margin: 0;
}

.limits-and-help .explanation-section {
    max-width: none;
    margin: 0;
}

.limits-container {
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.limits-container h2 {
    text-align: center;
    font-size: 1.25rem;
    color: var(--ai-blue-800);
    margin: 0 0 var(--ai-space-5);
}

.limits-group {
    margin-bottom: 20px;
}

.limits-group h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--ai-blue-800);
    margin-bottom: var(--ai-space-3);
}

.limits-row {
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

.limits-row label {
    font-size: 12px;
    margin-right: 5px;
    white-space: nowrap;
    width: 120px;
}

.limits-row input[type="number"] {
    font-size: 12px;
    padding: 4px;
    width: 60px;
    margin-right: 10px;
}

@media (max-width: 1200px) {
    .charts-container {
        grid-template-columns: 1fr;
    }

    /* Hide schematic images only — keep sliders/inputs accessible */
    .side-panel > img,
    .feedback-image-container {
        display: none;
    }

    /* Loop-gain diagram panel has no controls */
    .charts-container > :nth-child(8) {
        display: none;
    }

    /* Interleave controls with charts (comp controls before comp chart) */
    .charts-container > :nth-child(1) { order: 1; }  /* plant controls */
    .charts-container > :nth-child(2) { order: 2; }  /* plant chart */
    .charts-container > :nth-child(3) { order: 4; }  /* comp chart */
    .charts-container > :nth-child(4) { order: 3; }  /* comp controls */
    .charts-container > :nth-child(5) { order: 5; }  /* feedback controls */
    .charts-container > :nth-child(6) { order: 6; }  /* feedback chart */
    .charts-container > :nth-child(7) { order: 7; }  /* loop gain chart */
    .charts-container > :nth-child(9) { order: 8; grid-column: 1; }

    .side-panel {
        width: 100%;
    }

    .side-panel .input-group {
        max-width: 480px;
        margin: 0 auto;
    }

    .input-group input[type="range"] {
        width: 120px;
    }
}

@media (max-width: 1100px) {
    .limits-and-help {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 800px) {
    .limits-row {
        flex-wrap: wrap;
    }
    .limits-row label {
        width: 100%;
        margin-bottom: 5px;
    }
    .limits-row input[type="number"] {
        margin-right: 5px;
    }

    .input-group input[type="range"] {
        width: 100%;
        margin-left: 0;
        margin-top: 4px;
    }

    .input-group .input-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .input-group label {
        width: auto;
    }
}