.band-simulation-container {
    background-color: var(--figma-color-bg-tertiary);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.band-simulation-container h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-size: 1.2em;
    color: var(--figma-color-text);
    text-align: left;
}
.sim-intro {
    margin: 0 0 1rem 0;
    font-size: 0.9em;
    color: var(--figma-color-text-secondary);
    line-height: 1.6;
}
.sim-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 1rem;
    background: var(--figma-color-bg);
    padding: 1rem;
    border-radius: 8px;
}
.sim-control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
    min-width: 220px;
}
.sim-control-group h4 {
    margin: 0 0 0.25rem 0;
    font-size: 0.95em;
    color: var(--figma-color-text-secondary);
}
.sim-control-group label {
    cursor: pointer;
    font-size: 0.88em;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    line-height: 1.4;
}
.sim-control-group label input {
    margin-top: 0.2em;
    flex-shrink: 0;
}
.sim-control-group label small {
    display: block;
    color: var(--figma-color-text-tertiary);
    font-size: 0.88em;
    font-weight: normal;
    margin-top: 0.15rem;
}
.sim-canvas-wrap {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}
#simCanvas {
    background: linear-gradient(180deg, #87ceeb 0%, #b8dff5 38%, #e8f4fc 55%);
    border: 1px solid var(--figma-color-border);
    border-radius: 8px;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    display: block;
}
.sim-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    justify-content: center;
    margin-top: 0.75rem;
    font-size: 0.82em;
    color: var(--figma-color-text-secondary);
}
.sim-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.sim-legend-item::before {
    content: '';
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}
.sim-legend-item.direct::before {
    background: linear-gradient(90deg, rgba(16,185,129,0.2), rgba(16,185,129,0.8));
    border: 1px solid #10b981;
}
.sim-legend-item.diffract::before {
    background: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 2px,
        rgba(59,130,246,0.5) 2px,
        rgba(59,130,246,0.5) 4px
    );
    border: 1px solid #3b82f6;
}
.sim-legend-item.shadow::before {
    background: repeating-linear-gradient(
        45deg,
        #fca5a5,
        #fca5a5 2px,
        #fee2e2 2px,
        #fee2e2 4px
    );
    border: 1px solid #ef4444;
}
.sim-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: stretch;
    margin-top: 1rem;
}
.sim-status {
    flex: 1 1 280px;
    font-weight: bold;
    font-size: 0.95em;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    color: white;
    line-height: 1.5;
}
.sim-status.good { background-color: #10b981; }
.sim-status.weak { background-color: #f59e0b; }
.sim-status.bad { background-color: #ef4444; }
.sim-signal-panel {
    flex: 0 0 auto;
    min-width: 140px;
    background: var(--figma-color-bg);
    border: 1px solid var(--figma-color-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    text-align: center;
}
.sim-signal-panel .sim-signal-label {
    font-size: 0.78em;
    color: var(--figma-color-text-secondary);
    margin-bottom: 0.35rem;
}
.sim-signal-bars {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 4px;
    height: 28px;
}
.sim-signal-bars span {
    width: 10px;
    border-radius: 2px 2px 0 0;
    background: var(--figma-color-border);
    transition: background-color 0.3s;
}
.sim-signal-bars span:nth-child(1) { height: 8px; }
.sim-signal-bars span:nth-child(2) { height: 13px; }
.sim-signal-bars span:nth-child(3) { height: 18px; }
.sim-signal-bars span:nth-child(4) { height: 23px; }
.sim-signal-bars span:nth-child(5) { height: 28px; }
.sim-signal-bars.active-0 span { background: var(--figma-color-border); }
.sim-signal-bars.active-1 span:nth-child(1) { background: #ef4444; }
.sim-signal-bars.active-2 span:nth-child(-n+2) { background: #f59e0b; }
.sim-signal-bars.active-3 span:nth-child(-n+3) { background: #f59e0b; }
.sim-signal-bars.active-4 span:nth-child(-n+4) { background: #10b981; }
.sim-signal-bars.active-5 span { background: #10b981; }
.sim-signal-text {
    margin-top: 0.35rem;
    font-size: 0.85em;
    font-weight: bold;
    color: var(--figma-color-text);
}