* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --text-primary: #eaeaea;
    --text-secondary: #a0a0a0;
    --accent-primary: #e94560;
    --border-color: #2a2a4a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 48px;
    background: var(--bg-secondary);
    padding: 0 16px;
    border-bottom: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-logo { font-size: 20px; }
.app-title { font-size: 15px; font-weight: 600; }

.app-badge {
    font-size: 11px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: 10px;
}

.header-link {
    color: var(--accent-primary);
    font-size: 13px;
    text-decoration: none;
}
.header-link:hover { text-decoration: underline; }

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.drop-zone {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--border-color);
    margin: 24px;
    border-radius: 12px;
    transition: all 0.3s;
}

.drop-zone.drag-over {
    border-color: var(--accent-primary);
    background: rgba(233, 69, 96, 0.1);
}

.drop-content { text-align: center; }

.drop-icon { font-size: 64px; margin-bottom: 16px; }
.drop-text { font-size: 16px; color: var(--text-secondary); margin-bottom: 24px; }
.drop-hint { font-size: 12px; color: var(--text-secondary); margin-top: 14px; }

.btn-primary {
    padding: 12px 32px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-primary:hover { background: #d63850; transform: translateY(-1px); }

.preview-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 16px;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.preview-title { font-size: 16px; font-weight: 600; }
.preview-stats { font-size: 13px; color: var(--text-secondary); }

.image-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.image-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
}

.image-item:hover {
    border-color: var(--accent-primary);
    background: rgba(15, 52, 96, 0.5);
}

.image-item-thumbnail {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: 4px;
    background: var(--bg-primary);
    flex-shrink: 0;
}

.image-item-info { flex: 1; min-width: 0; }

.image-item-name {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-item-size { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

.image-item-sub {
    font-size: 12px;
    color: #4ade80;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-item-remove {
    padding: 6px 12px;
    background: rgba(233, 69, 96, 0.2);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    flex-shrink: 0;
}
.image-item-remove:hover { background: var(--accent-primary); color: white; }

.image-item-download {
    padding: 6px 12px;
    background: rgba(15, 52, 96, 0.6);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    flex-shrink: 0;
    text-decoration: none;
}
.image-item-download:hover { background: var(--border-color); }

.settings-panel {
    width: 300px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
}

.settings-content { padding: 20px; }
.settings-content h3 { font-size: 16px; margin-bottom: 20px; font-weight: 600; }

.setting-group { margin-bottom: 20px; }
.setting-group > label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.radio-label { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; display:block; }
.radio-group { display: flex; flex-direction: column; }
.radio-option {
    display: flex; align-items: center; gap: 8px;
    cursor: pointer; margin-bottom: 6px; font-size: 13px;
}

.checkbox-option {
    display: flex; align-items: center; gap: 8px;
    cursor: pointer; margin-bottom: 6px; font-size: 13px;
}
.checkbox-option input, .radio-option input { cursor: pointer; }

.select-input, .number-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}
.select-input:focus, .number-input:focus { outline: none; border-color: var(--accent-primary); }

.btn-action {
    width: 100%;
    padding: 14px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    margin-bottom: 10px;
    transition: all 0.2s;
}
.btn-action:hover { background: #d63850; }

.btn-secondary {
    width: 100%;
    padding: 12px;
    background: rgba(15, 52, 96, 0.8);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    margin-bottom: 10px;
    transition: all 0.2s;
}
.btn-secondary:hover { background: var(--border-color); }

.api-note {
    margin-top: 18px;
    padding: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 12px;
    line-height: 1.7;
    color: var(--text-secondary);
}
.api-note code {
    color: var(--accent-primary);
    background: rgba(233,69,96,0.1);
    padding: 1px 5px;
    border-radius: 4px;
}

.status-bar {
    height: 28px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 16px;
}
.status-text { font-size: 12px; color: var(--text-secondary); }

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal.show { display: flex; }
.modal.image-viewer-modal { background: rgba(0, 0, 0, 0.95); }
.modal-content {
    background: var(--bg-secondary);
    border-radius: 12px;
    width: 90%;
    max-width: 480px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    padding: 24px;
}
.modal-close {
    position: absolute;
    top: 12px; right: 12px;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; cursor: pointer; color: var(--text-secondary);
}
.modal-close:hover { color: var(--text-primary); }
.modal-body { text-align: center; }

.progress-container { margin-top: 16px; }
.progress-bar {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 4px;
    transition: width 0.3s;
    width: 0%;
}
.progress-text { font-size: 12px; color: var(--text-secondary); margin-top: 8px; text-align: center; }

.compare-columns { display: flex; gap: 16px; flex: 1; overflow: hidden; }
.compare-column { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.column-header {
    font-size: 14px;
    font-weight: 600;
    padding: 12px;
    background: rgba(233, 69, 96, 0.15);
    border-radius: 8px;
    margin-bottom: 12px;
    text-align: center;
    border: 1px solid rgba(233, 69, 96, 0.3);
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a5a; }