/* ===== 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f7fa;
    color: #1a1a2e;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

.container {
    max-width: 820px;
    width: 100%;
    background: #ffffff;
    border-radius: 24px;
    padding: 40px 48px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

/* ===== 头部 ===== */
.header {
    text-align: center;
    margin-bottom: 32px;
}

.header h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: #6b7280;
    font-size: 15px;
    margin-top: 4px;
}

/* ===== 上传区域 ===== */
.upload-section {
    margin-bottom: 24px;
}

.upload-zone {
    border: 2px dashed #d1d5db;
    border-radius: 16px;
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    background: #fafbfc;
}

.upload-zone:hover {
    border-color: #8b5cf6;
    background: #f5f3ff;
}

.upload-zone.dragover {
    border-color: #8b5cf6;
    background: #ede9fe;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    color: #1f2937;
}

.upload-hint {
    font-size: 13px;
    color: #9ca3af;
    margin-top: 4px;
}

#fileInput {
    display: none;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #f0fdf4;
    border-radius: 12px;
    border: 1px solid #86efac;
    margin-top: 12px;
}

.file-name {
    font-weight: 500;
    color: #166534;
    flex: 1;
}

.file-size {
    color: #6b7280;
    font-size: 13px;
}

.btn-remove {
    background: none;
    border: none;
    color: #ef4444;
    font-size: 18px;
    cursor: pointer;
    padding: 0 4px;
}

/* ===== 配置区域 ===== */
.config-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: #374151;
}

.form-group .required {
    color: #ef4444;
}

.form-group input,
.form-group select {
    padding: 10px 14px;
    border: 1px solid #d1d5db;
    border-radius: 10px;
    font-size: 14px;
    transition: border 0.2s;
    background: #fafbfc;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.form-group input:invalid {
    border-color: #fca5a5;
}

.form-group small {
    font-size: 12px;
    color: #9ca3af;
}

/* ===== 操作按钮 ===== */
.action-section {
    text-align: center;
    margin-bottom: 24px;
}

.btn-generate {
    padding: 14px 48px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-generate:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.35);
}

.btn-generate:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-spinner {
    display: inline-block;
    animation: spin 0.8s linear infinite;
}

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

/* ===== 进度区域 ===== */
.progress-section {
    margin-bottom: 24px;
    padding: 20px 0;
}

.progress-bar {
    height: 6px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    border-radius: 4px;
    transition: width 0.4s ease;
}

.progress-status {
    text-align: center;
    font-size: 14px;
    color: #6b7280;
    margin-top: 10px;
}

.progress-logs {
    margin-top: 12px;
    background: #1f2937;
    border-radius: 10px;
    padding: 12px 16px;
    max-height: 180px;
    overflow-y: auto;
    font-family: 'Menlo', 'Consolas', monospace;
    font-size: 12px;
    color: #d1d5db;
}

.progress-logs .log-line {
    padding: 2px 0;
    opacity: 0.8;
}

.progress-logs .log-line.info { color: #60a5fa; }
.progress-logs .log-line.success { color: #34d399; }
.progress-logs .log-line.warning { color: #fbbf24; }
.progress-logs .log-line.error { color: #f87171; }

/* ===== 结果区域 ===== */
.result-section {
    padding: 20px 0;
    border-top: 1px solid #e5e7eb;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

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

.result-title {
    font-size: 18px;
    font-weight: 600;
}

.result-files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.result-files .file-tag {
    background: #f3f4f6;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    color: #374151;
}

.result-actions {
    display: flex;
    gap: 12px;
}

.result-actions button {
    padding: 10px 24px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-download {
    background: #6366f1;
    color: #fff;
}

.btn-download:hover {
    background: #4f46e5;
    transform: translateY(-1px);
}

.btn-view {
    background: #f3f4f6;
    color: #374151;
}

.btn-view:hover {
    background: #e5e7eb;
}

.result-error {
    margin-top: 12px;
    padding: 12px 16px;
    background: #fef2f2;
    border-radius: 10px;
    border: 1px solid #fca5a5;
    color: #dc2626;
}

/* ===== 响应式 ===== */
@media (max-width: 600px) {
    .container {
        padding: 24px 16px;
    }

    .config-section {
        grid-template-columns: 1fr;
    }

    .upload-zone {
        padding: 32px 16px;
    }

    .btn-generate {
        width: 100%;
        justify-content: center;
    }
}

/* 查看代码仓库按钮 */
.btn-view-repo {
    background: #10b981;
    color: #fff;
}

.btn-view-repo:hover {
    background: #059669;
    transform: translateY(-1px);
}