/* ============================================
   Rewind Lab - Create Page Styles
   ============================================ */

.create-main {
    padding-top: 96px; /* 避开固定导航栏 */
    padding-bottom: 48px;
    min-height: 100vh;
    background: var(--color-surface);
}

.create-container {
    max-width: 900px;
}

/* 步骤指示器 */
.stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 48px;
    overflow-x: auto;
    padding: 0 10px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
    opacity: 0.5;
    transition: all var(--transition-normal);
}

.step.active {
    opacity: 1;
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-border);
    color: var(--color-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: 8px;
    transition: all var(--transition-normal);
}

.step.active .step-number {
    background: var(--color-primary);
    color: #fff;
}

.step-text {
    font-size: 13px;
    color: var(--color-text-light);
    font-weight: 500;
    white-space: nowrap;
}

.step.active .step-text {
    color: var(--color-primary);
    font-weight: 600;
}

.step-divider {
    width: 20px;
    height: 2px;
    background: var(--color-border);
    margin: 0 8px;
    margin-bottom: 20px;
}

/* 步骤内容区域 */
.step-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.step-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-header {
    text-align: center;
    margin-bottom: 32px;
}

.step-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.step-header p {
    color: var(--color-text-light);
}

/* 上传区域 */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    background: var(--color-background);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-primary);
    background: rgba(230, 126, 34, 0.05);
}

.upload-icon {
    color: var(--color-primary);
    margin-bottom: 16px;
}

.upload-text {
    font-size: 18px;
    color: var(--color-text);
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 14px;
    color: var(--color-text-light);
}

.file-preview {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
}

.file-preview.hidden {
    display: none;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.file-icon {
    font-size: 24px;
}

.file-name {
    font-weight: 600;
    color: var(--color-text);
}

.file-size {
    color: var(--color-text-light);
    font-size: 14px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
}

.btn-outline:hover {
    border-color: var(--color-error);
    color: var(--color-error);
}

/* 步骤操作按钮 */
.step-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 48px;
    gap: 16px;
}

.step-actions .btn {
    flex: 1;
}

/* 风格选择网格 */
.style-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.style-card {
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.style-card:hover {
    transform: translateY(-4px);
}

.style-card.selected {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.2);
}

.style-thumb {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    position: relative;
}

.style-info {
    padding: 16px;
    background: var(--color-background);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    border: 1px solid var(--color-border);
    border-top: none;
}

.style-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.style-info p {
    font-size: 12px;
    color: var(--color-text-light);
}

/* 参数面板 */
.params-panel {
    background: var(--color-background);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.param-group {
    margin-bottom: 24px;
}

.param-group:last-child {
    margin-bottom: 0;
}

.param-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--color-border);
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.param-value {
    display: inline-block;
    margin-top: 8px;
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 600;
}

.toggle-group {
    display: flex;
    gap: 16px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--color-text-light);
}

.toggle-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
}

/* 处理中区域 */
.processing-zone {
    text-align: center;
    padding: 48px 24px;
    background: var(--color-background);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.loading-spinner {
    margin-bottom: 24px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.processing-status {
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
}

.progress-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 16px;
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    width: 0%;
    transition: width 0.3s ease;
}

.processing-hint {
    font-size: 14px;
    color: var(--color-text-light);
}

/* 下载区域 */
.download-zone {
    text-align: center;
    padding: 48px 24px;
    background: var(--color-background);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.success-icon {
    color: var(--color-success);
    margin-bottom: 16px;
}

.download-zone h3 {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--color-text);
}

.download-zone p {
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.download-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    max-width: 400px;
    margin: 0 auto;
}

.download-actions .btn {
    flex: 1;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .stepper {
        justify-content: flex-start;
        padding: 0 20px;
    }
    .step-text {
        display: none;
    }
    .step-divider {
        width: 40px;
    }
    .step-actions {
        flex-direction: column;
    }
    .style-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .download-actions {
        flex-direction: column;
    }
}