.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(44px, 1fr));
    gap: 10px;
}

.color-chip {
    width: 100%;
    padding-top: 100%;
    position: relative;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.color-chip::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 10px;
}

.color-chip[data-color="white"]::after { background: #ffffff; border: 1px solid #d1d5db; }
.color-chip[data-color="black"]::after { background: #000000; }
.color-chip[data-color="red"]::after { background: #ff0033; }
.color-chip[data-color="green"]::after { background: #00c853; }
.color-chip[data-color="blue"]::after { background: #0d6efd; }
.color-chip[data-color="magenta"]::after { background: #ff00ff; }
.color-chip[data-color="yellow"]::after { background: #ffeb3b; }
.color-chip[data-color="cyan"]::after { background: #00e5ff; }

.color-chip:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.color-chip.active {
    border-color: #0d6efd;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25);
}

.cycle-settings .input-group-text {
    background: #f8f9fa;
}

[data-bs-theme="dark"] .cycle-settings .input-group-text {
    background: #2b3035;
    border-color: #3a3f45;
}

.preview-canvas {
    border-radius: 12px;
    border: 1px solid rgba(13, 110, 253, 0.15);
    background: radial-gradient(circle at center, rgba(13, 110, 253, 0.05), transparent 65%);
    aspect-ratio: 16 / 9;
}

[data-bs-theme="dark"] .preview-canvas {
    border-color: rgba(110, 168, 254, 0.2);
    background: radial-gradient(circle at center, rgba(110, 168, 254, 0.12), transparent 65%);
}

.fullscreen-overlay {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.fullscreen-overlay canvas {
    width: 100vw;
    height: 100vh;
}

.exit-fullscreen-btn {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

@media (max-width: 768px) {
    .color-grid {
        grid-template-columns: repeat(auto-fit, minmax(36px, 1fr));
    }
}