/* ============================================================
 * panels.css
 * 面板样式：文件选择面板、背景设置面板、拍摄面板、HSL 滑块
 * ============================================================ */

/* ===== 文件选择面板 / 背景设置面板 ===== */
.file-panel, .bg-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 420px;
    max-width: 92vw;
    background: rgba(28, 28, 32, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 14px;
    padding: 22px 24px;
    z-index: 50;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.file-panel.hidden, .bg-panel.hidden { display: none; }
.file-panel h3, .bg-panel h3 {
    margin: 0 0 16px 0;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
}
.file-row {
    margin-bottom: 14px;
}
.file-row label {
    display: block;
    font-size: 13px;
    color: #aaa;
    margin-bottom: 6px;
}
.file-row input[type="file"] {
    width: 100%;
    color: #ccc;
    font-size: 12px;
}
.file-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}
.file-input-row input[type="file"] {
    flex: 1;
    min-width: 0;
}
.file-clear-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 6px;
    background: rgba(255,255,255,0.1);
    color: #ccc;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s;
}
.file-clear-btn:hover { background: rgba(220, 80, 80, 0.6); color: #fff; }
.file-row .file-name {
    display: block;
    margin-top: 4px;
    font-size: 11px;
    color: #6ea8ff;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.file-actions {
    display: flex;
    gap: 10px;
    margin-top: 18px;
}
.file-actions button {
    flex: 1;
    padding: 8px 0;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s;
}
.btn-load {
    background: #2d6cdf;
    color: #fff;
}
.btn-load:hover { background: #3d7cef; }
.btn-cancel {
    background: rgba(255,255,255,0.1);
    color: #ccc;
}
.btn-cancel:hover { background: rgba(255,255,255,0.18); }

/* 背景设置面板专用样式 */
.bg-section {
    margin-bottom: 18px;
}
.bg-section > label {
    display: block;
    font-size: 13px;
    color: #aaa;
    margin-bottom: 10px;
}
.hsl-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.hsl-label {
    font-size: 12px;
    color: #ccc;
    min-width: 42px;
}
.hsl-row input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255,255,255,0.12);
    border-radius: 3px;
    outline: none;
}
.hsl-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #6ea8ff;
    border: 2px solid #fff;
    cursor: pointer;
}
.hsl-row input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #6ea8ff;
    border: 2px solid #fff;
    cursor: pointer;
}
.hsl-val {
    font-size: 12px;
    color: #9ec5ff;
    min-width: 40px;
    text-align: right;
}
.hsl-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
}
.hsl-preview-box {
    width: 48px;
    height: 32px;
    border-radius: 6px;
    border: 2px solid rgba(255,255,255,0.25);
    background: #000;
}
.hsl-hex {
    font-size: 13px;
    color: #ccc;
    font-family: monospace;
}
.capture-mode-row {
    display: flex;
    gap: 10px;
}
.mode-btn {
    flex: 1;
    padding: 8px 0;
    background: rgba(255,255,255,0.08);
    color: #ccc;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.15s;
}
.mode-btn:hover { background: rgba(255,255,255,0.18); }
.mode-btn.active {
    background: #2d6cdf;
    border-color: #5a8ef0;
    color: #fff;
}
.capture-panel select {
    width: 100%;
    background: rgba(255,255,255,0.08);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 13px;
    outline: none;
}
.bg-image-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.bg-image-row input[type="file"] {
    color: #ccc;
    font-size: 12px;
    flex: 1;
    min-width: 160px;
}
.bg-image-row button {
    padding: 6px 12px;
    background: rgba(255,255,255,0.1);
    color: #ccc;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    white-space: nowrap;
}
.bg-image-row button:hover { background: rgba(255,255,255,0.18); }
.bg-hint {
    font-size: 11px;
    color: #888;
    margin-top: 8px;
    line-height: 1.5;
}