/**
 * CSS动画生成器样式
 */

.animation-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 预览区域 */
.preview-section {
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--color-border-light);
}

.preview-area {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    background:
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(-45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f0f0f0 75%),
        linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    border-radius: 8px;
}

.preview-box {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
}

.preview-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.btn-play, .btn-stop {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-play {
    background: var(--color-primary);
    color: white;
}

.btn-play:hover {
    background: var(--color-primary-dark);
}

.btn-stop {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.btn-stop:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* 主网格 */
.main-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* 控制区域 */
.control-section {
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--color-border-light);
}

.control-block {
    margin-bottom: 20px;
}

.control-block:last-child {
    margin-bottom: 0;
}

.block-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-border-light);
}

/* 预设网格 */
.preset-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.preset-btn {
    padding: 10px 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    font-size: 12px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.preset-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.preset-btn.active {
    background: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* 属性网格 */
.props-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.prop-item {
    background: var(--color-bg);
    border-radius: 8px;
    padding: 12px;
    border: 1px solid var(--color-border-light);
}

.prop-item label {
    display: block;
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.prop-item select,
.prop-item input[type="number"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 13px;
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

.prop-item select:focus,
.prop-item input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.prop-input {
    display: flex;
    align-items: center;
    gap: 6px;
}

.prop-input input {
    flex: 1;
}

.prop-input span {
    font-size: 13px;
    color: var(--color-text-secondary);
}

/* 关键帧编辑器 */
.keyframes-editor {
    background: var(--color-bg);
    border-radius: 8px;
    padding: 16px;
    border: 1px solid var(--color-border-light);
    min-height: 100px;
}

.keyframe-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.keyframe-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--color-bg-secondary);
    border-radius: 8px;
    border: 1px solid var(--color-border-light);
}

.keyframe-percent {
    width: 60px;
    padding: 6px 8px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 12px;
    text-align: center;
    background: var(--color-bg);
    color: var(--color-text);
}

.keyframe-props {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.keyframe-prop {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
}

.keyframe-prop label {
    color: var(--color-text-secondary);
}

.keyframe-prop input {
    width: 60px;
    padding: 4px 6px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 11px;
    background: var(--color-bg);
    color: var(--color-text);
}

.btn-add-keyframe {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px dashed var(--color-border);
    border-radius: 8px;
    font-size: 13px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition);
    margin-top: 12px;
}

.btn-add-keyframe:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-remove-keyframe {
    padding: 4px 8px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 11px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-remove-keyframe:hover {
    border-color: #ef4444;
    color: #ef4444;
}

/* 输出区域 */
.output-section {
    background: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
}

.btn-copy {
    padding: 8px 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 13px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-copy:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.code-box {
    flex: 1;
    background: #1e1e1e;
    border-radius: 8px;
    padding: 16px;
    min-height: 200px;
    overflow: auto;
}

.code-content {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    color: #d4d4d4;
    white-space: pre-wrap;
    word-break: break-all;
}

.code-content .keyword {
    color: #c586c0;
}

.code-content .property {
    color: #9cdcfe;
}

.code-content .value {
    color: #ce9178;
}

.code-content .number {
    color: #b5cea8;
}

/* 响应式 */
@media (max-width: 900px) {
    .main-grid {
        grid-template-columns: 1fr;
    }

    .props-grid {
        grid-template-columns: 1fr;
    }

    .preset-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .preview-section,
    .control-section,
    .output-section {
        padding: 16px;
    }

    .preview-area {
        min-height: 150px;
    }

    .preview-box {
        width: 60px;
        height: 60px;
    }

    .preset-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .keyframe-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .keyframe-props {
        width: 100%;
    }

    .code-content {
        font-size: 11px;
    }
}