@import url('https://registry.npmmirror.com/lxgw-wenkai-screen-web/latest/files/style.css');

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

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg: #fafafa;
    --card: #ffffff;
    --text: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'LXGW WenKai Screen', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    line-height: 1.4;
    color: var(--text);
}

.container {
    background: var(--card);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 480px;
    width: 100%;
    border: 1px solid var(--border);
}

header {
    text-align: center;
    padding: 20px 24px 12px;
    border-bottom: 1px solid var(--border);
}

header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
    letter-spacing: -0.025em;
}

header p {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 400;
}

main {
    padding: 16px 24px 20px;
}

/* 选项卡样式 */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
    gap: 0;
}

.tab-btn {
    flex: 1;
    padding: 12px 16px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text);
    background: rgba(37, 99, 235, 0.05);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

/* 选项卡内容 */
.tab-content {
    display: none;
}

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

.shorten-form,
.note-form {
    margin-bottom: 24px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.input-group input,
.input-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--card);
    transition: all 0.2s ease;
    resize: vertical;
    text-align: justify;
}

.input-group textarea {
    min-height: 90px;
    line-height: 1.4;
    resize: none;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.input-group textarea::-webkit-scrollbar {
    display: none;
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
    color: var(--text-muted);
}

.input-group button {
    padding: 12px 20px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.input-group button:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.input-group button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.result {
    background: #f8fafc;
    border-radius: 12px;
    padding: 16px;
    border: 1px solid var(--border);
    margin-top: 6px;
}

.result-item {
    margin-bottom: 12px;
}

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

.result-item label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
    font-size: 13px;
}

.url-display {
    display: flex;
    gap: 8px;
    align-items: center;
}

.url-display input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card);
    font-family: ui-monospace, 'SF Mono', 'Monaco', 'Cascadia Code', monospace;
    font-size: 13px;
    color: var(--text);
}

.copy-btn {
    padding: 10px 16px;
    background: #059669;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: #047857;
}

.copy-btn.copied {
    background: #0891b2;
}

.original-url,
.created-time {
    padding: 10px 12px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-muted);
    word-break: break-all;
}

.error {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid #fecaca;
    margin-top: 16px;
    font-size: 14px;
}

footer {
    text-align: center;
    padding: 16px 32px;
    background: #f9fafb;
    color: var(--text-muted);
    font-size: 12px;
    border-top: 1px solid var(--border);
    border-radius: 0 0 16px 16px;
}

.loading {
    color: var(--text-muted);
}

@media (max-width: 640px) {
    body {
        padding: 16px;
    }
    
    .container {
        max-width: 100%;
    }
    
    header {
        padding: 24px 24px 20px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    main {
        padding: 20px 24px 24px;
    }
    
    footer {
        padding: 12px 24px;
    }
    
    .url-display {
        flex-direction: column;
        align-items: stretch;
    }
    
    .copy-btn {
        align-self: flex-end;
        width: fit-content;
    }
}