.card {
            background: white;
            padding: 40px;
            border-radius: 20px;
            width: 100%;
            max-width: 400px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
        }

        h2 {
            margin-bottom: 8px;
        }

        p.subtitle {
            color: gray;
            font-size: 14px;
            margin-bottom: 24px;
        }

        input {
            width: 100%;
            padding: 12px 14px;
            border-radius: 12px;
            border: 1px solid #ccc;
            font-size: 14px;
            box-sizing: border-box;
            margin-bottom: 16px;
        }

        button {
            width: 100%;
            padding: 12px;
            background-color: #20aa93;
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 15px;
            cursor: pointer;
            transition: 0.2s;
        }

        button:hover {
            background-color: #146a5b;
        }

        .message {
            margin-top: 16px;
            font-size: 14px;
            color: #146a5b;
            text-align: center;
        }

        .back {
            display: block;
            text-align: center;
            margin-top: 16px;
            font-size: 13px;
            color: gray;
            text-decoration: none;
        }

        .back:hover {
            color: #146a5b;
        }