<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="{{ url_for('static', filename='font-awesome.css') }}">
    <title>登录</title>
    <style>
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: #f5f5f5; color: #333;
            display: flex; align-items: center; justify-content: center;
            min-height: 100vh;
        }
        .login-card {
            background: #fff; border-radius: 12px; padding: 40px 36px;
            width: 380px; box-shadow: 0 4px 24px rgba(0,0,0,0.08);
        }
        .login-card h1 {
            font-size: 20px; font-weight: 700; color: #1a1a1a;
            text-align: center; margin-bottom: 6px;
        }
        .login-card .subtitle {
            text-align: center; font-size: 13px; color: #999; margin-bottom: 28px;
        }
        .input-group { margin-bottom: 16px; }
        .input-group label {
            display: block; font-size: 12px; font-weight: 600; color: #555; margin-bottom: 6px;
        }
        .input-group input {
            width: 100%; padding: 10px 12px; border: 1px solid #e0e0e0; border-radius: 8px;
            font-size: 14px; outline: none; transition: border-color 0.15s;
        }
        .input-group input:focus { border-color: #0078d4; box-shadow: 0 0 0 2px rgba(0,120,212,0.06); }
        .login-btn {
            width: 100%; padding: 11px 0; margin-top: 8px;
            background: linear-gradient(135deg, #0078d4, #005fa3);
            color: #fff; border: none; border-radius: 8px;
            font-size: 14px; font-weight: 600; cursor: pointer;
            transition: all 0.15s;
        }
        .login-btn:hover {
            background: linear-gradient(135deg, #006cbd, #004e8a);
            box-shadow: 0 4px 12px rgba(0,120,212,0.25); transform: translateY(-1px);
        }
        .login-btn:active { transform: translateY(0); }
        .error-msg {
            background: #fce4ec; color: #c62828; border: 1px solid #f8bbd0;
            border-radius: 6px; padding: 8px 12px; font-size: 13px;
            text-align: center; margin-bottom: 16px;
        }

        @media (max-width: 768px) {
            .login-card { width: 92vw; padding: 28px 20px; }
        }
    </style>
</head>
<body>
    <div class="login-card">
        <h1><i class="fas fa-wrench" style="color:#0078d4; margin-right:6px;"></i>工具集管理后台</h1>
        <p class="subtitle">请登录以继续使用</p>
        {% if error %}
        <div class="error-msg">{{ error }}</div>
        {% endif %}
        <form method="POST" action="/login">
            <div class="input-group">
                <label>用户名</label>
                <input type="text" name="username" placeholder="请输入用户名" autofocus required>
            </div>
            <div class="input-group">
                <label>密码</label>
                <input type="password" name="password" placeholder="请输入密码" required>
            </div>
            <button type="submit" class="login-btn"><i class="fas fa-right-to-bracket"></i> 登 录</button>
        </form>
    </div>
</body>
</html>
