/* Blackbody Radiation – Stefan-Boltzmann Lab (requirements: black scheme, Courier New, max-width 800px) */
#content_sim .blackbody-lab {
    padding: 16px 0;
    max-width: 800px;
    background: #000;
    color: #ccc;
    font-family: 'Courier New', monospace;
}

#content_sim .blackbody-container {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    align-items: flex-start;
}

#content_sim .blackbody-controls {
    flex: 0 0 260px;
    border-right: 1px solid #333;
    padding-right: 20px;
}

#content_sim .blackbody-controls h2 {
    margin: 0 0 12px 0;
    font-size: 1.2em;
    color: #ddd;
    font-family: 'Courier New', monospace;
}

#content_sim .blackbody-row {
    margin-bottom: 14px;
}

#content_sim .blackbody-row label {
    display: block;
    margin-bottom: 4px;
    font-size: 12px;
    color: #aaa;
    font-family: 'Courier New', monospace;
}

#content_sim .blackbody-row input[type="range"] {
    width: 100%;
    max-width: 220px;
}

#content_sim #blackbody-temp-display {
    font-size: 1.5em;
    font-weight: bold;
    margin: 8px 0 16px 0;
    color: #fff;
    font-family: 'Courier New', monospace;
}

#content_sim .blackbody-stats {
    background: #1a1a1a;
    padding: 14px;
    border-radius: 8px;
    margin: 16px 0;
    font-size: 13px;
    color: #bbb;
    font-family: 'Courier New', monospace;
    border: 1px solid #333;
}

#content_sim .blackbody-stats p {
    margin: 8px 0;
}

#content_sim .blackbody-stats strong {
    display: block;
    margin-top: 2px;
    color: #6af;
}

#content_sim .blackbody-scale-toggle {
    margin: 12px 0;
}

#content_sim .blackbody-scale-toggle label {
    font-size: 12px;
    cursor: pointer;
    color: #aaa;
    font-family: 'Courier New', monospace;
}

#content_sim #blackbody-object {
    width: 75px;
    height: 75px;
    border-radius: 50%;
    margin: 20px auto;
    background: radial-gradient(circle at 30% 30%, #333 0%, #111 100%);
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    transition: background 0.1s linear, box-shadow 0.1s linear, opacity 0.2s ease-in-out;
    border: 1px solid #444;
    display: block;
}

#content_sim .blackbody-mode-toggle-btn {
    display: block;
    margin: 8px auto 4px;
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    padding: 8px;
    cursor: pointer;
    color: #aaa;
    transition: background 0.3s, color 0.3s;
}

#content_sim .blackbody-mode-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

#content_sim .blackbody-visibility-status {
    font-family: 'Courier New', monospace;
    font-size: 10px;
    color: #fff;
    margin: 4px 0 0;
    min-height: 14px;
}

#content_sim .blackbody-visibility-ir {
    color: #fff;
}

#content_sim .blackbody-visibility-visible {
    color: #8c8;
}

#content_sim .blackbody-visibility-high {
    color: #fc8;
}

#content_sim .blackbody-emitter-label {
    text-align: center;
    font-size: 12px;
    color: #fff;
    margin-top: 8px;
    font-family: 'Courier New', monospace;
}

#content_sim .blackbody-viz {
    flex: 1;
    min-width: 200px;
    width: 480px;
    margin-left: -10px;
}

#content_sim .blackbody-viz p {
    font-family: 'Courier New', monospace;
    color: #888;
}

#content_sim .blackbody-canvas-wrap {
    position: relative;
    display: inline-block;
}

#content_sim #blackbody-plot-canvas {
    display: block;
    width: 100%;
    max-width: 480px;
    border: 1px solid #333;
    background: #0d0d0d;
    border-radius: 4px;
}

#content_sim .blackbody-overlay-btn {
    position: absolute;
    top: 6px;
    right: 8px;
    width: 32px;
    height: 24px;
    padding: 0;
    font-family: 'Courier New', monospace;
    font-size: 11px;
    font-weight: bold;
    color: #ccc;
    background: rgba(20, 20, 20, 0.85);
    border: 1px solid #555;
    border-radius: 3px;
    cursor: pointer;
}

#content_sim .blackbody-overlay-btn:hover {
    background: rgba(40, 40, 40, 0.9);
    color: #fff;
    border-color: #777;
}

#content_sim .blackbody-overlay-btn-comp {
    right: 46px;
}

#content_sim .blackbody-overlay-btn-autox {
    right: 84px;
    width: 48px;
}

#content_sim .blackbody-overlay-btn-active {
    background: rgba(60, 80, 100, 0.9);
    border-color: #6af;
}

@media (max-width: 700px) {
    #content_sim .blackbody-container {
        flex-direction: column;
    }
    #content_sim .blackbody-controls {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid #333;
        padding-bottom: 16px;
    }
    #content_sim .blackbody-viz {
        min-width: 100%;
    }
}