/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease-out;
    backdrop-filter: blur(2px);
}

/* Confirm dialog must stack above all other modals */
#confirm-modal {
    z-index: 2500;
}

/* Audio test spectrum canvas */
.audio-test-canvas {
    display: block;
    width: 100%;
    height: 200px;
    background: #111;
    border-radius: 6px;
}

.audio-test-stats {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 10px 0 0;
    font-family: monospace;
}

.audio-test-stat {
    display: flex;
    align-items: center;
    gap: 6px;
}

.audio-test-stat-label {
    color: var(--text-muted, #888);
    font-size: 0.85em;
}

.audio-test-stat-value {
    font-weight: 600;
    min-width: 50px;
}

.audio-test-beat-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #444;
    transition: background 0.1s;
}

.audio-test-beat-dot.active {
    background: #ff4444;
    box-shadow: 0 0 8px #ff4444;
}

.audio-test-status {
    text-align: center;
    padding: 8px 0;
    color: var(--text-muted, #888);
    font-size: 0.9em;
}

/* Value source test chart canvas */
.vs-test-canvas {
    display: block;
    width: 100%;
    height: 200px;
    background: #111;
    border-radius: 6px;
}

.vs-test-stats {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 10px 0 0;
    font-family: monospace;
}

.vs-test-stat {
    display: flex;
    align-items: center;
    gap: 6px;
}

.vs-test-stat-label {
    color: var(--text-muted, #888);
    font-size: 0.85em;
}

.vs-test-stat-value {
    font-weight: 600;
    min-width: 50px;
}

.vs-test-value-large {
    font-size: 1.3em;
    color: #4caf50;
}

.vs-test-status {
    text-align: center;
    padding: 8px 0;
    color: var(--text-muted, #888);
    font-size: 0.9em;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px var(--shadow-color);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#template-modal .modal-content {
    max-width: 500px !important;
    width: 100% !important;
}

#test-template-modal .modal-content {
    max-width: 420px;
}

@keyframes slideUp {
    from {
        transform: translateY(20px) scale(0.98);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-header {
    padding: 24px 24px 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-color);
}

.modal-header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.modal-header-btn {
    background: none;
    border: none;
    font-size: 1.1rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
    flex-shrink: 0;
}
.modal-header-btn:hover {
    background: rgba(128, 128, 128, 0.15);
}
.modal-header-btn:disabled {
    opacity: 0.4;
    cursor: default;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
    flex-shrink: 0;
}

.modal-close-btn:hover {
    color: var(--text-color);
    background: rgba(128, 128, 128, 0.15);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    scrollbar-gutter: stable;
    flex: 1 1 auto;
    min-height: 0;
}

.modal-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    flex: 1;
    padding-right: 45px;
}

.password-toggle {
    position: absolute;
    right: 8px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 8px;
    color: var(--text-color);
    opacity: 0.6;
    transition: opacity 0.2s;
}

.password-toggle:hover {
    opacity: 1;
}

.label-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 5px;
}

.label-row label {
    margin-bottom: 0;
}

.hint-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    line-height: 1;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity 0.2s;
    flex-shrink: 0;
}

.hint-toggle:hover {
    opacity: 1;
}

.hint-toggle.active {
    opacity: 1;
    color: var(--primary-text-color, #4CAF50);
    border-color: var(--primary-color, #4CAF50);
}

.input-hint {
    display: block;
    margin: 0 0 6px 0;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.field-desc {
    display: block;
    margin: 4px 0 0 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-style: italic;
}

.inline-fields {
    display: flex;
    gap: 12px;
}

.inline-field {
    flex: 1;
}

.inline-field label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.inline-field input[type="number"] {
    width: 100%;
}

/* Segment rows in target editor */
.segment-row {
    border: 1px solid var(--border-color, #333);
    border-radius: 6px;
    padding: 8px 10px;
    margin-bottom: 6px;
    background: var(--card-bg, #1e1e1e);
}

.device-led-info {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.85em;
}

.segment-row-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.segment-index-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.btn-icon-inline {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0 4px;
    line-height: 1;
}

.btn-danger-text {
    color: var(--danger-color, #f44336);
}

.btn-danger-text:hover {
    color: #ff6659;
}

.segment-row-fields {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.segment-row-fields select {
    flex: 1 1 100%;
}

.segment-range-fields {
    display: flex;
    gap: 6px;
    align-items: center;
    flex: 1;
}

.segment-range-fields label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.segment-range-fields input[type="number"] {
    width: 70px;
}

.segment-reverse-label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}

.segment-reverse-label input[type="checkbox"] {
    margin: 0;
}

.btn-sm {
    font-size: 0.8rem;
    padding: 4px 10px;
    min-width: auto;
}

.fps-hint {
    display: block;
    margin-top: 4px;
    font-size: 0.82rem;
    color: var(--info-color, #2196F3);
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-row input[type="range"] {
    flex: 1;
}

.slider-value {
    min-width: 28px;
    text-align: center;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.form-collapse {
    margin-bottom: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 8px;
}

.form-collapse > summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 4px 0;
    user-select: none;
}

.form-collapse > summary::-webkit-details-marker { display: none; }

.form-collapse > summary::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 0.35em solid currentColor;
    border-top: 0.25em solid transparent;
    border-bottom: 0.25em solid transparent;
    opacity: 0.6;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.form-collapse[open] > summary::before {
    transform: rotate(90deg);
}

.form-collapse > summary:hover {
    color: var(--text-color);
}

.form-collapse-body {
    padding-top: 8px;
}

.error-message {
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
    padding: 12px;
    border-radius: 4px;
    margin-top: 15px;
    font-size: 0.9rem;
}

.modal-footer {
    padding: 16px 24px 24px 24px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.modal-footer .btn-icon {
    min-width: 60px;
    padding: 10px 20px;
    font-size: 1.4rem;
}

.btn-display-picker {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
    text-align: left;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-weight: 400;
}

.btn-display-picker:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.15);
}

.modal-content-wide {
    width: fit-content;
    max-width: calc(100vw - 40px);
    max-height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
}

@media (min-width: 769px) {
    .modal-content-wide {
        min-width: 500px;
    }
}

.modal-content-wide .modal-body {
    overflow-y: auto;
    scrollbar-gutter: stable;
    flex: 1 1 auto;
    min-height: 0;
}

@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 20px;
    }

    .modal-footer .btn {
        min-width: 80px;
    }
}

/* Image Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 95%;
    max-height: 95%;
    cursor: default;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    display: block;
}

.lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    z-index: 1;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-refresh-btn {
    position: absolute;
    top: 16px;
    right: 64px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    z-index: 1;
}

.lightbox-refresh-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-refresh-btn.active {
    background: var(--primary-color);
}

.lightbox-stats {
    position: absolute;
    bottom: 8px;
    left: 8px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    color: white;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.lightbox-stats .stat-item {
    display: flex;
    gap: 4px;
    align-items: center;
}

.lightbox-stats .stat-item span {
    opacity: 0.7;
}

.lightbox-stats .stat-item strong {
    font-weight: 600;
}

/* Display Picker Lightbox */
.display-picker-content {
    max-width: 900px;
    width: 90%;
    text-align: center;
}

.display-picker-title {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.display-picker-canvas {
    background: rgba(255, 255, 255, 0.05);
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 24px;
    width: 100%;
    box-sizing: border-box;
}

.layout-display-pickable {
    cursor: pointer !important;
    border: 2px solid var(--border-color) !important;
    background: linear-gradient(135deg, rgba(128, 128, 128, 0.08), rgba(128, 128, 128, 0.03)) !important;
}

.layout-display-pickable:hover {
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.4);
    border-color: var(--primary-color) !important;
}

.layout-display-pickable.selected {
    border-color: var(--primary-color) !important;
    box-shadow: 0 0 16px rgba(76, 175, 80, 0.5);
    background: rgba(76, 175, 80, 0.12) !important;
}

/* ── Device picker list (cameras, scrcpy) ─────────────────────── */

.device-picker-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.device-picker-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(128, 128, 128, 0.08), rgba(128, 128, 128, 0.03));
    cursor: pointer;
}

.device-picker-item .layout-index-label {
    position: static;
    flex-shrink: 0;
}

.device-picker-item .layout-display-label {
    text-align: left;
    padding: 0;
}

/* ── Gradient editor ────────────────────────────────────────────── */

.effect-palette-preview {
    width: 100%;
    height: 20px;
    border-radius: 6px;
    margin-top: 6px;
    border: 1px solid var(--border-color);
}

.gradient-editor {
    position: relative;
    width: 100%;
    user-select: none;
}

#gradient-canvas {
    width: 100%;
    height: 44px;
    display: block;
    border-radius: 6px 6px 0 0;
    cursor: crosshair;
    border: 1px solid var(--border-color);
    border-bottom: none;
}

.gradient-markers-track {
    position: relative;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 0 0 6px 6px;
    background: var(--card-bg);
    cursor: crosshair;
    margin-bottom: 12px;
}

.gradient-marker {
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
    cursor: grab;
    transform: translateX(-50%);
    top: 6px;
    transition: box-shadow 0.1s;
}

.gradient-marker.selected {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-color), 0 1px 4px rgba(0, 0, 0, 0.5);
}

.gradient-marker:active {
    cursor: grabbing;
}

.gradient-stop-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    margin-bottom: 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--card-bg);
}

.gradient-stop-row.selected {
    border-color: var(--primary-color);
}

.gradient-stop-pos {
    width: 76px;
    max-width: 76px;
    flex-shrink: 0;
}

.gradient-stop-color {
    width: 38px;
    height: 28px;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
    padding: 1px;
    border-radius: 4px;
    cursor: pointer;
    background: transparent;
}

.gradient-stop-bidir-btn {
    font-size: 0.75rem;
    padding: 0;
    width: 26px;
    height: 26px;
    flex: 0 0 26px;
    opacity: 0.6;
}

.gradient-stop-remove-btn {
    font-size: 0.75rem;
    padding: 0;
    width: 26px;
    height: 26px;
    flex: 0 0 26px;
}

.gradient-stop-bidir-btn.active {
    background: var(--primary-color);
    color: var(--primary-contrast);
    border-color: var(--primary-color);
    opacity: 1;
}

.gradient-stop-spacer {
    flex: 1;
}

/* ── Color Cycle editor ──────────────────────────────────────── */

#color-cycle-colors-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.color-cycle-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.color-cycle-item input[type="color"] {
    width: 36px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1px;
    cursor: pointer;
    background: transparent;
    flex-shrink: 0;
}

.color-cycle-remove-btn {
    font-size: 0.6rem;
    padding: 0;
    width: 36px;
    height: 14px;
    min-width: unset;
    line-height: 1;
}

/* ── Composite layer editor ────────────────────────────────────── */

#composite-layers-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 8px;
}

.composite-layer-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--card-bg);
}

.composite-layer-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.composite-layer-source {
    flex: 1;
    min-width: 0;
}

.composite-layer-blend {
    width: 100px;
    flex-shrink: 0;
}

.composite-layer-opacity-label {
    font-size: 0.8rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.composite-layer-opacity {
    flex: 1;
    min-width: 60px;
}

.composite-layer-toggle {
    flex-shrink: 0;
}

.composite-layer-remove-btn {
    font-size: 0.75rem;
    padding: 0;
    width: 26px;
    height: 26px;
    flex: 0 0 26px;
}