/* 图片水印添加工具样式 */

:root {
    --primary-color: #ec4899;
    --primary-hover: #f472b6;
    --primary-light: rgba(236, 72, 153, 0.08);
    --primary-light-hover: rgba(236, 72, 153, 0.12);
    --border-color-hover: rgba(236, 72, 153, 0.2);
    --shadow-primary: 0 0 16px rgba(236, 72, 153, 0.15);
}

html, body {
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    margin: 0;
}

body {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 70px;
    padding-bottom: 70px;
    min-height: 100vh;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, #9d174d 100%);
}

.main-content {
    width: 100%;
    max-width: 800px;
    padding: 20px;
    z-index: 10;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* 类型切换 Tab */
.type-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: rgba(0,0,0,0.15);
}

.tab-btn {
    flex: 1;
    padding: 14px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.tab-btn:hover { color: var(--text-secondary); background: rgba(255,255,255,0.02); }
.tab-btn.active { color: var(--primary-color); border-bottom: 2px solid var(--primary-color); background: rgba(255,255,255,0.03); }

.upload-section { padding: 16px; }

.drop-zone {
    padding: 30px 20px;
    text-align: center;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    transition: 0.2s;
    cursor: pointer;
}
.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}
.drop-zone i { font-size: 36px; color: var(--primary-color); margin-bottom: 10px; }
.drop-zone p { color: var(--text-secondary); font-size: 14px; }
.drop-zone .hint { color: var(--text-muted); font-size: 12px; margin-top: 4px; }

/* 水印设置 */
.watermark-settings {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.setting-row { margin-bottom: 12px; }

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

.input-field {
    width: 100%;
    padding: 10px 14px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}
.input-field:focus { border-color: var(--primary-color); }

.setting-row-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 12px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.number-input {
    width: 70px;
    padding: 6px 8px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
}
.number-input:focus { border-color: var(--primary-color); }

.range-input {
    width: 100px;
    accent-color: var(--primary-color);
    cursor: pointer;
}
.quality-label { color: var(--primary-color); font-weight: 600; min-width: 40px; }
.unit { color: var(--text-muted); font-size: 12px; }

.select {
    padding: 6px 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    cursor: pointer;
}
.select:focus { border-color: var(--primary-color); }

.color-input {
    width: 40px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: none;
    cursor: pointer;
    padding: 2px;
}

.watermark-upload {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-action {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(255,255,255,0.05);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: 0.2s;
}
.btn-action:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.btn-action:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-upload { background: rgba(236, 72, 153, 0.15); border-color: rgba(236, 72, 153, 0.3); color: #f472b6; }
.btn-upload:hover { background: rgba(236, 72, 153, 0.25); }
.btn-apply { background: rgba(236, 72, 153, 0.2); border-color: rgba(236, 72, 153, 0.3); color: #f472b6; }
.btn-apply:hover:not(:disabled) { background: rgba(236, 72, 153, 0.3); }
.btn-download { background: rgba(34, 197, 94, 0.15); border-color: rgba(34, 197, 94, 0.3); color: #4ade80; }
.btn-download:hover:not(:disabled) { background: rgba(34, 197, 94, 0.25); }
.btn-clear { background: rgba(156, 163, 175, 0.1); border-color: rgba(156, 163, 175, 0.2); color: #9ca3af; }
.btn-clear:hover { background: rgba(156, 163, 175, 0.2); }

.file-name-hint {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.toggle-option {
    display: flex; align-items: center; gap: 6px;
    font-size: 13px; color: var(--text-secondary);
    cursor: pointer; user-select: none;
}
.toggle-option input { cursor: pointer; accent-color: var(--primary-color); }

/* 预览 */
.preview-section { padding: 16px; }
.preview-section.hidden { display: none; }

.canvas-wrapper {
    background: rgba(0,0,0,0.15);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#previewCanvas {
    max-width: 100%;
    max-height: 400px;
    display: block;
}

.action-bar {
    display: flex;
    gap: 10px;
    padding: 16px;
    flex-wrap: wrap;
    align-items: center;
}

@media (max-width: 768px) {
    .setting-row-grid { flex-direction: column; gap: 10px; }
}

@media (max-width: 480px) {
    .main-content { padding: 10px; }
    .action-bar { justify-content: center; }
}