/* led-panels.css */
.led-panels-block {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1.5rem;
 
    color: #f0f0f0;
    border-radius: 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.led-panels-block h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #fff;
}

.led-preview {
    position: relative;
    width: 100%;
    height: 270px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    margin: 20px 0 25px;
    box-shadow:
        0 0 15px rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 255, 255, 0.3),
        0 0 50px rgba(255, 255, 255, 0.2);
    transition: all 0.4s ease;
    backdrop-filter: blur(4px);
}

.led-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.led-tab {
    padding: 10px 20px;
    border: none;
    background: #2d2d2d;
    color: #ccc;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

.led-tab:hover {
    background: #3a3a3a;
}

.led-tab.active {
    background: #0d6efd;
    color: white;
}

.led-content .led-panel {
    display: none;
}

.led-content .led-panel.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.cct-slider,
.color-picker {
    margin-top: 1.2rem;
    padding-top: 1.2rem;
    border-top: 1px solid #333;
}

.cct-slider label,
.color-picker label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
}

#cctSlider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #333;
    outline: none;
}

input[type="color"] {
    width: 60px;
    height: 40px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    background: transparent;
}

ul {
    padding-left: 1.2rem;
    margin: 1rem 0;
}

ul li {
    margin-bottom: 0.4rem;
}