body {
            background: #f0f2f5;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            padding: 20px;
        }

        .card {
            background: white;
            width: 350px;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.1);
        }

        h2 {
            text-align: center;
            color: #16a085;
            margin-bottom: 25px;
        }

        input {
            width: 100%;
            padding: 12px;
            border-radius: 10px;
            border: 1px solid #ccc;
            margin-bottom: 15px;
            font-size: 15px;
        }

        button {
            width: 100%;
            padding: 12px;
            background: #16a085;
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            cursor: pointer;
            transition: 0.3s;
        }

        button:hover {
            background: #1abc9c;
        }

        a {
            text-decoration: none;
            color: #16a085;
            display: block;
            text-align: center;
            margin-top: 15px;
            font-size: 14px;
        }