.joiner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 24px 0 48px; }
@media (max-width: 900px) { .joiner-grid { grid-template-columns: 1fr; } }
.joiner-settings .setting-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.joiner-settings .setting-row label { font-size: 13px; color: #4e5969; flex-shrink: 0; width: 60px; }
.dir-btns, .format-btns { display: flex; gap: 6px; }
.dir-btn, .fmt-btn { padding: 4px 12px; font-size: 12px; border: 1px solid #e5e6eb; border-radius: 6px; background: #fff; color: #4e5969; cursor: pointer; transition: all 0.2s; }
.dir-btn:hover, .fmt-btn:hover { border-color: #165DFF; color: #165DFF; }
.dir-btn.active, .fmt-btn.active { border-color: #165DFF; background: #f0f5ff; color: #165DFF; font-weight: 500; }
.slider-wrap { display: flex; align-items: center; gap: 10px; flex: 1; }
.quality-slider { flex: 1; height: 4px; -webkit-appearance: none; appearance: none; background: #e5e6eb; border-radius: 2px; outline: none; }
.quality-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: #165DFF; cursor: pointer; border: 2px solid #fff; box-shadow: 0 1px 4px rgba(0,0,0,0.2); }
.quality-value { font-size: 13px; color: #165DFF; font-weight: 600; min-width: 36px; text-align: right; }
.color-wrap { display: flex; align-items: center; gap: 8px; }
.color-wrap input[type="color"] { width: 32px; height: 28px; border: 1px solid #e5e6eb; border-radius: 4px; cursor: pointer; padding: 0; }
.color-wrap span { font-size: 12px; color: #86909c; font-family: monospace; }
.panel-actions { display: flex; gap: 10px; }
.btn-tiny { padding: 8px 20px; font-size: 14px; font-weight: 500; border: none; border-radius: 6px; background: #165DFF; color: #fff; cursor: pointer; transition: all 0.25s; box-shadow: 0 2px 8px rgba(22,93,255,0.25); }
.btn-tiny:hover { background: #0e42d2; box-shadow: 0 4px 12px rgba(22,93,255,0.35); transform: translateY(-1px); }
.btn-tiny:active { transform: translateY(0); box-shadow: 0 2px 6px rgba(22,93,255,0.3); }
#btn-download { background: #00B42A; box-shadow: 0 2px 8px rgba(0,180,42,0.25); }
#btn-download:hover { background: #009a23; box-shadow: 0 4px 12px rgba(0,180,42,0.35); }
.joiner-preview { min-height: 200px; background: #f7f8fa; border: 1px solid #e5e6eb; border-radius: 8px; padding: 16px; text-align: center; overflow: auto; max-height: 600px; }
.preview-empty { color: #86909c; padding: 60px 0; font-size: 14px; }
.joiner-preview img { max-width: 100%; border-radius: 4px; }
.file-list { margin-top: 12px; }
.file-item { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border: 1px solid #e5e6eb; border-radius: 6px; margin-bottom: 4px; font-size: 13px; background: #f7f8fa; cursor: grab; }
.file-item:active { cursor: grabbing; }
.file-item-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: #1d2129; }
.file-item-size { color: #86909c; font-size: 12px; }
.file-item-remove { color: #c9cdd4; cursor: pointer; font-size: 16px; }
.file-item-remove:hover { color: #F53F3F; }