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

:root {
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    --popover: 0 0% 100%;
    --popover-foreground: 222.2 84% 4.9%;
    --primary: 222.2 47.4% 11.2%;
    --primary-foreground: 210 40% 98%;
    --secondary: 210 40% 96%;
    --secondary-foreground: 222.2 47.4% 11.2%;
    --muted: 210 40% 96%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --accent: 210 40% 96%;
    --accent-foreground: 222.2 47.4% 11.2%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 40% 98%;
    --border: 214.3 31.8% 91.4%;
    --input: 214.3 31.8% 91.4%;
    --ring: 222.2 84% 4.9%;
    --radius: 0.5rem;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: hsl(var(--foreground));
    background: hsl(var(--background));
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
    overflow-x: hidden;
}

header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

/* 语言切换按钮样式 */
.language-switcher {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-bottom: 1rem;
}

.lang-btn {
    padding: 6px 16px;
    border: 1px solid hsl(var(--border));
    background: hsl(var(--background));
    color: hsl(var(--foreground));
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-btn:hover {
    background: hsl(var(--accent));
    border-color: hsl(var(--primary));
}

.lang-btn.active {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border-color: hsl(var(--primary));
}

@media (max-width: 768px) {
    .language-switcher {
        justify-content: center;
        margin-bottom: 1.5rem;
    }
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
    color: hsl(var(--foreground));
}

header p {
    font-size: 1.2rem;
    color: hsl(var(--muted-foreground));
}

main {
    background: hsl(var(--card));
    border-radius: var(--radius);
    border: 1px solid hsl(var(--border));
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    padding: 40px;
    margin-bottom: 20px;
    width: 100%;
    overflow-x: hidden;
}

section {
    margin-bottom: 40px;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: hsl(var(--foreground));
    border-bottom: 1px solid hsl(var(--border));
    padding-bottom: 10px;
}

/* 上传区域样式 - shadcn 风格 */
.upload-area {
    border: 2px dashed hsl(var(--border));
    border-radius: calc(var(--radius) - 2px);
    padding: 60px 20px;
    text-align: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    background: hsl(var(--muted));
    border-width: 1px;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: hsl(var(--primary));
    background: hsl(var(--accent));
    box-shadow: 0 0 0 3px hsl(var(--primary) / 0.1);
}

.upload-content svg {
    color: hsl(var(--muted-foreground));
    margin-bottom: 16px;
}

.upload-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: hsl(var(--foreground));
}

.upload-content p {
    color: hsl(var(--muted-foreground));
    margin-bottom: 20px;
    font-size: 0.875rem;
}

/* 按钮样式 */
.btn-primary {
    background: hsl(var(--primary));
    color: hsl(var(--primary-foreground));
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.btn-primary:hover {
    background: hsl(var(--primary) / 0.9);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-secondary {
    background: hsl(var(--secondary));
    color: hsl(var(--secondary-foreground));
    border: 1px solid hsl(var(--border));
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: hsl(var(--accent));
}

/* 预览区域样式 */
.preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 768px) {
    .preview-container {
        grid-template-columns: 1fr;
    }
}

.font-info {
    background: hsl(var(--muted));
    padding: 20px;
    border-radius: var(--radius);
    border-left: 4px solid hsl(var(--primary));
}

.font-info h3 {
    color: hsl(var(--foreground));
    margin-bottom: 15px;
}

.info-grid {
    display: grid;
    gap: 10px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid hsl(var(--border));
}

.info-item label {
    font-weight: 600;
    color: hsl(var(--foreground));
}

.preview-text textarea {
    width: 100%;
    height: 100px;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.preview-text textarea:focus {
    outline: none;
    border-color: #667eea;
}

.preview-display {
    margin-top: 15px;
    padding: 20px;
    background: #f7fafc;
    border-radius: 8px;
    border: 2px solid #e2e8f0;
    min-height: 100px;
    font-size: 1.2rem;
    line-height: 1.8;
}

/* 配置区域样式 - shadcn 风格 */
.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    width: 100%;
}

.config-group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.config-group label {
    font-weight: 500;
    margin-bottom: 8px;
    color: hsl(var(--foreground));
    font-size: 0.875rem;
}

.config-group textarea,
.config-group select,
.config-group input {
    padding: 8px 12px;
    border: 1px solid hsl(var(--input));
    border-radius: calc(var(--radius) - 2px);
    font-size: 0.875rem;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    background: hsl(var(--background));
    color: hsl(var(--foreground));
}

.config-group textarea:focus,
.config-group select:focus,
.config-group input:focus {
    outline: none;
    border-color: hsl(var(--primary));
    box-shadow: 0 0 0 2px hsl(var(--primary) / 0.1);
}

.config-group textarea {
    min-height: 80px;
    resize: vertical;
}

.subset-info {
    margin-top: 20px;
    padding: 15px;
    background: #e6fffa;
    border: 1px solid #81e6d9;
    border-radius: 8px;
    color: #234e52;
}

.subset-info p {
    margin: 0;
    font-weight: 500;
}

.config-group small {
    margin-top: 5px;
    font-size: 0.8rem;
    color: #718096;
}

.result-summary {
    margin-bottom: 20px;
    padding: 15px;
    background: #f0fff4;
    border: 1px solid #9ae6b4;
    border-radius: 8px;
    color: #22543d;
}

.result-summary p {
    margin: 0;
    font-weight: 600;
}

.file-list {
    max-height: 250px;
    overflow-y: auto;
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) - 2px);
    padding: 12px;
    background: hsl(var(--muted));
    width: 100%;
}

.file-item {
    padding: 12px 16px;
    margin-bottom: 8px;
    background: hsl(var(--background));
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) - 2px);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    font-size: 0.75rem;
    line-height: 1.5;
    word-break: break-word;
    overflow-wrap: break-word;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.file-item:hover {
    border-color: hsl(var(--primary));
    box-shadow: 0 0 0 1px hsl(var(--primary) / 0.1);
}

.file-item:last-child {
    margin-bottom: 0;
}

.file-item strong {
    color: hsl(var(--foreground));
    font-weight: 600;
    font-size: 0.8rem;
}

/* 操作区域样式 */
.action-section {
    text-align: center;
    padding: 20px 0;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 20px;
    color: hsl(var(--primary));
    font-weight: 500;
    flex-direction: column;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid hsl(var(--border));
    border-top: 2px solid hsl(var(--primary));
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.progress-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
    max-width: 300px;
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: hsl(var(--muted));
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: hsl(var(--primary));
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 0.875rem;
    color: hsl(var(--muted-foreground));
}

.processing-detail {
    font-size: 0.9rem;
    color: hsl(var(--muted-foreground));
    text-align: center;
    max-width: 320px;
    min-height: 1.1em;
    margin-top: 4px;
    word-break: break-word;
}

/* 日志容器样式 */
.log-container {
    margin-top: 20px;
    width: 100%;
    max-width: 600px;
    background: hsl(var(--muted));
    border: 1px solid hsl(var(--border));
    border-radius: calc(var(--radius) - 2px);
    overflow: hidden;
}

.log-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: hsl(var(--accent));
    border-bottom: 1px solid hsl(var(--border));
    font-size: 0.875rem;
    font-weight: 600;
    color: hsl(var(--foreground));
}

.btn-clear-log {
    background: transparent;
    border: 1px solid hsl(var(--border));
    color: hsl(var(--muted-foreground));
    padding: 4px 8px;
    border-radius: calc(var(--radius) - 4px);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-clear-log:hover {
    background: hsl(var(--background));
    border-color: hsl(var(--primary));
    color: hsl(var(--foreground));
}

.log-content {
    max-height: 200px;
    overflow-y: auto;
    padding: 8px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    font-size: 0.75rem;
    line-height: 1.6;
    background: hsl(var(--background));
}

.log-empty {
    text-align: center;
    color: hsl(var(--muted-foreground));
    padding: 20px;
    font-style: italic;
}

.log-entry {
    padding: 4px 8px;
    margin-bottom: 4px;
    border-radius: calc(var(--radius) - 4px);
    word-break: break-word;
    transition: background-color 0.2s ease;
}

.log-entry:hover {
    background: hsl(var(--accent));
}

.log-time {
    color: hsl(var(--muted-foreground));
    margin-right: 8px;
    font-weight: 500;
}

.log-message {
    color: hsl(var(--foreground));
}

.log-entry.log-info .log-message {
    color: hsl(var(--foreground));
}

.log-entry.log-success .log-message {
    color: #22543d;
}

.log-entry.log-success {
    background: #f0fff4;
    border-left: 3px solid #9ae6b4;
}

.log-entry.log-warning .log-message {
    color: #744210;
}

.log-entry.log-warning {
    background: #fffbeb;
    border-left: 3px solid #fcd34d;
}

.log-entry.log-error .log-message {
    color: #742a2a;
}

.log-entry.log-error {
    background: #fff5f5;
    border-left: 3px solid #fc8181;
}

/* 滚动条样式 */
.log-content::-webkit-scrollbar {
    width: 6px;
}

.log-content::-webkit-scrollbar-track {
    background: hsl(var(--muted));
}

.log-content::-webkit-scrollbar-thumb {
    background: hsl(var(--border));
    border-radius: 3px;
}

.log-content::-webkit-scrollbar-thumb:hover {
    background: hsl(var(--muted-foreground));
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 结果区域样式 */
.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .result-grid {
        grid-template-columns: 1fr;
    }
}

.result-item {
    background: #f7fafc;
    padding: 20px;
    border-radius: 8px;
    border: 2px solid #e2e8f0;
}

.result-item h4 {
    color: #2d3748;
    margin-bottom: 15px;
}

.result-item pre {
    background: #2d3748;
    color: #e2e8f0;
    padding: 15px;
    border-radius: 6px;
    font-size: 0.85rem;
    overflow-x: auto;
    margin-bottom: 15px;
    max-height: 250px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
    width: 100%;
    box-sizing: border-box;
}

.download-section {
    text-align: center;
}

/* 页脚样式 */
footer {
    text-align: center;
    color: white;
    opacity: 0.8;
    padding: 20px 0;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .preview-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .result-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    main {
        padding: 20px;
    }

    header h1 {
        font-size: 2rem;
    }

    header p {
        font-size: 1rem;
    }

    .config-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .upload-area {
        padding: 40px 15px;
    }

    .upload-content h3 {
        font-size: 1.3rem;
    }

    .result-item pre {
        font-size: 0.8rem;
        padding: 12px;
    }

    .file-item {
        font-size: 0.8rem;
        padding: 8px 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 5px;
    }

    main {
        padding: 15px;
    }

    header h1 {
        font-size: 1.6rem;
    }

    header p {
        font-size: 0.9rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    .btn-primary {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}